The everlasting covenant and gospel dispensations -- Part 6 (Jesus Christ)

The previous parts of this series are found here:

• Part 1: Introduction and Adam
• Part 2: Enoch
• Part 3: Noah
• Part 4: Abraham
• Part 5: Moses

This post will focus on the gospel dispensation of Jesus Christ himself. There is plenty of material to take from since the scriptures testify of him. Some of that describes Christ as a restorer of the everlasting covenant. It is interesting to note that from Enoch and on, there is an increasing amount of available information on the gospel dispensations. We know next to nothing about Enoch from the Bible but the Pearl of Great Price gives us a chapter and a half. We have several chapters in Genesis about Noah. We have even more chapters about Abraham in Genesis plus the Book of Abraham in the Pearl of Great Price. We have entire books about Moses (Exodus-Deuteronomy). The same can be said about Jesus. In addition to the four gospels, we have the account of his visit among the Nephites in 3 Nephi, but numerous prophecies and sermons in addition. From Joseph Smith we have almost the entire Doctrine and Covenants plus much more detailed accounts of his life than any of the other heads of previous dispensations.

But back to Jesus Christ. The peculiar thing about this dispensation is that he, as the God of the Old Testament, established the everlasting covenant in the first place. He covenanted with Adam, Enoch, Noah, Abraham and Moses. He is "the Father of heaven and earth, the Creator of all things from the beginning" (Mosiah 3:8). The author of the everlasting covenant came to earth himself to restore it. He who created all things longs to re-unite all creation and paid the price of it with his own blood.

In the previous post we discussed the dispensation of Moses. How the Lord wanted to give them the fullness and they could only handle a part. But Moses prophesied:

The Lord your God will raise up for you a prophet like me from among your own brothers (Deuteronomy 18:15)

Christ identified himself as that prophet when he visited the Nephites.

Behold, I am he of whom Moses spake, saying: A prophet shall the Lord your God raise up unto you of your brethren, like unto me (3 Nephi 20:23)

More on this in a previous post about Moses and Christ, explained beautifully by Abinadi. There is a Jewish tradition of the Messiah as the second Moses and there are numerous parallels in addition to the simple fact that Jesus identified as the prophet that Moses told about and said he had come to fulfill the Law of Moses. For instance:

• Jesus was born without shelter and laid in a manger. Moses was also born without shelter and laid in a basket, interestingly called an ark.
• Pharaoh and Herod both order all male infants killed and thereby threaten the lives of Moses and Jesus
• Jesus and Moses both spent their childhood in Egypt
• Both Jesus and Moses fasted 40 days in the wilderness

These historical events establish a parallel such that we can find meaning in the following:

• Moses led Israel out of physical bondage. Jesus leads out out of spiritual bondage
• The people that Moses led were fed manna from heaven. Jesus referred to this event as he identified as the bread of life
• Moses smote the rock so the water gushed out. Jesus is the rock who offers the water of life
• The 10 commandments were given through Moses. Jesus discussed and re-interpreted these in the Sermon of the Mount
• Moses erected a tabernacle to house God. Jesus came down in an earthly tabernacle to house his spirit
• Moses initiated the passover lamb. Jesus is the Lamb of God offering himself as a sacrifice.
• Moses led the people to the promised land. Jesus leads us to the promised land of the celestial kingdom

Jesus came as the second Moses to fulfill the law. The law came with a covenant. The old covenant/testament was replaced by a new. The animal sacrifice pointing forward to Christ's sacrifice was replaced by the sacrament held in remembrance of Christ's sacrifice.

27 And he took the cup, and gave thanks, and gave it to them, saying, Drink ye all of it;

28 For this is my blood of the new testament, which is shed for many for the remission of sins. (Matthew 26)

Both the sermon of Abinadi and the Letter to the Hebrews explain that salvation could not come by the Law of Moses alone but only through the atoning sacrifice of Jesus Christ. The Law of Moses was administered with the Aaronic Priesthood, also called the lesser or preparatory priesthood. The gospel of Christ and the everlasting covenant are administered with the Melchizedek Priesthood.

11 If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchisedec, and not be called after the order of Aaron?

12 For the priesthood being changed, there is made of necessity a change also of the law. (Hebrews 7)

6 But now hath he obtained a more excellent ministry, by how much also he is the mediator of a better covenant, which was established upon better promises.

7 For if that first covenant had been faultless, then should no place have been sought for the second.

8 For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah:

9 Not according to the covenant that I made with their fathers in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord.

10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people: (Hebrews 8)

Since Christ's mission was to fulfill the Law of Moses, there are numerous parallels to that dispensation in particular. But the life and ministry of Christ also refers to the other gospel dispensations

• Adam plucked the fruit from the tree. Jesus reversed the fall as the firstfruits of God hanged on the tree at the crucifixion. "For as in Adam all die, even so in Christ shall all be made alive." (1 Corinthians 15:22)
• Enoch established Zion that was taken up to heaven. When Jesus comes again from heaven, he will establish the millennial Zion and the two will meet.
• Noah survived the baptism of the earth and sent forth a dove when the water receded. When Jesus was baptized and came out of the water, the Spirit descended on him in the form of a dove.
• Abraham was willing to sacrifice his son. This is a "similitude of God and his Only Begotten Son" (Jacob 4:5)

As in previous dispensations, the everlasting covenant was brought to earth when Christ came. But where previous dispensations only had looked forward to the sacrifice that was required to effectuate it, Jesus, the creator, came to sacrifice himself for the creation.

Let the mountains shout for joy, and all ye valleys cry aloud; and all ye seas and dry lands tell the wonders of your Eternal King! And ye rivers, and brooks, and rills, flow down with gladness. Let the woods and all the trees of the field praise the Lord; and ye solid rocks weep for joy! And let the sun, moon, and the morning stars sing together, and let all the sons of God shout for joy! And let the eternal creations declare his name forever and ever! And again I say, how glorious is the voice we hear from heaven, proclaiming in our ears, glory, and salvation, and honor, and immortality, and eternal life; kingdoms, principalities, and powers! (D&C 128:23)

I think this verse is a fitting way to end the year on a positive note. We also wish our readers a Happy New Year! 

Gold and the Two Ways -- part 5 (Conclusion)

This is the conclusion of a series of posts about Gold and treasure in the scriptures and how they are used in connection with the doctrine of the Two Ways. Here is an overview and summary of each part with links:

Part 1 -- We begin with an introduction to the concept and a few key examples demonstrating how multiple bible authors speak of God's hidden wisdom as more precious than gold or treasure. 

Part 2 -- In this part we cover examples from the Old Testament and the Book of Moses. The Tabernacle was to be built of gold and treasure given "willingly with [the] heart" (Exodus 25:2, NRSV). One great sin of Israel involves adorning themselves in gold and treasure and holding the necks high (and stubbornly) rather than caring for the poor. Ironically, the gold they begin to worship corrupts them and transforms God's precious chosen people into "earthen pots" (Lamentations 4:2, NRSV)

Part 3 -- This post covers references to gold/riches in the New Testament.  Particular attention is given to how often Jesus speaks of treasure as a potential barrier to spiritual progress. In addition, James 5:1-4 alludes directly to the story of Cain, indicating this is an ancient metaphor/teaching. This post concludes with 1 Corinthians 3:10-16, which discusses a "testing by fire" which will happen at the day of judgment to see what kind of temple each individual has built upon the foundation that is Jesus Christ.

Part 4a -- This post covers references to gold and treasures in the Book of Mormon. We see that wealth is mentioned quite frequently in the context of pride and wickedness.

Part 4b -- This post discusses a closely related covenant symbol of "slippery treasure" and lays out how this curse connects not only to the covenant people's righteousness (regarding how they handle and esteem their riches), but also to a much older doctrine regarding the corrupting "sins of the fallen angels" as taught in the Book of Enoch. The Book of Mormon makes direct reference to demons and angels of Satan in relation to the curse of slippery treasures.

Part 5 -- This post (see below) will attempt to tie this all together and connect several important and powerful metaphors about mortality and the day of judgment 

Dross versus gold at the Day of Judgment

As noted in the previous sections above, several scriptures refer to a test by fire at the day of judgment. This metaphor is referenced in many different ways. Ezekiel 22 offers one particularly stark example. As the Lord is condemning Israel for rebellion, we get this metaphor:

17 The word of the Lord came to me: 18 Mortal, the house of Israel has become dross to me; all of them, silver, bronze, tin, iron, and lead. In the smelter they have become dross. 19 Therefore thus says the Lord God: Because you have all become dross, I will gather you into the midst of Jerusalem. 20 As one gathers silver, bronze, iron, lead, and tin into a smelter, to blow the fire upon them in order to melt them; so I will gather you in my anger and in my wrath, and I will put you in and melt you. 21 I will gather you and blow upon you with the fire of my wrath, and you shall be melted within it. 22 As silver is melted in a smelter, so you shall be melted in it; and you shall know that I the Lord have poured out my wrath upon you. (Ezekiel 22, NRSV)

Book of Enoch references

I won't attempt to list every reference in the Book of Enoch on this topic. I may address these in more depth in a future post, but for now it seems sufficient to offer a few of the clearest examples from the Book of Enoch.

The sins of the fallen angels relating to metal working and treasure can be found in 1 Enoch 8. The bigger context is very interesting, but will have to wait for a different post to keep this one from being way too long.

[Chapter 8]

¹ And Azazel taught men to make swords, and knives, and shields, and breastplates, and made known to them the metals of the earth and the art of working them, and bracelets, and ornaments ... ² ... And there arose much godlessness, and they committed fornication, and they ³ were led astray, and became corrupt in all their ways. ... And as men perished, they cried, and their cry went up to heaven . . . (source)

Later in the book, as Enoch is seeing visions of the fate of the earth, his eyes "saw all the secret things of heaven that shall be, a mountain of iron, and a mountain of copper, and a mountain of silver, and a mountain of gold, and a mountain of soft metal, and a mountain of lead. " (1 Enoch 52:2)  Enoch asks his angelic escort what the meaning of this vision is, and eventually receives this answer:

6 And these mountains which thine eyes have seen, The mountain of iron, and the mountain of copper, and the mountain of silver, And the mountain of gold, and the mountain of soft metal, and the mountain of lead, All these shall be in the presence of the Elect One As wax: before the fire, And like the water which streams down from above [upon those mountains], And they shall become powerless before his feet. 7 And it shall come to pass in those days that none shall be saved, Either by gold or by silver, And none be able to escape. 8 And there shall be no iron for war, Nor shall one clothe oneself with a breastplate. Bronze shall be of no service, And tin [shall be of no service and] shall not be esteemed, And lead shall not be desired. 9 And all these things shall be [denied and] destroyed from the surface of the earth, When the Elect One shall appear before the face of the Lord of Spirits.' (1 Enoch 52)

Even a mountain of gold will be meaningless at the day of judgment.  It will flow away like water in a stream. The vision continues with more explanation about the fate of those kings and rulers who exploited the knowledge of the fallen angels, not to mention the fallen angels themselves:

[Chapter 54]

¹ And I looked and turned to another part of the earth, and saw there a deep valley with burning ² fire. And they brought the kings and the mighty, and began to cast them into this deep valley. ³ And there mine eyes saw how they made these their instruments, iron chains of immeasurable weight. ⁴ And I asked the angel of peace who went with me, saying: ' For whom are these chains being prepared ? ' And he said unto me: ' These are being prepared for the hosts of Azazel, so that they may take them and cast them into the abyss of complete condemnation, and they shall cover their jaws with rough stones as the Lord of Spirits commanded. ⁶ And Michael, and Gabriel, and Raphael, and Phanuel shall take hold of them on that great day, and cast them on that day into the burning furnace, that the Lord of Spirits may take vengeance on them for their unrighteousness in becoming subject to Satan and leading astray those who dwell on the earth.' (1 Enoch 54)

This imagery falls right in line with the symbols we've been discussing from the scriptures.

If mortality is a test of our mettle (pun intended), to see if we will serve God or seek treasure, then it stands to reason that the day of judgment metaphor will exalt those who have not set their hearts on riches in mortality (they become gold in this metaphor) and those who have set their heart on gold in mortality will find their riches slipping away from them in the day of judgment (they are dross in this metaphor).  It is a grand reversal -- the lofty and haughty shall be abased and the humble shall be exalted. A king who used a knowledge of metal working to oppress his people and wage war will be cast into a fiery pit as one might do with dross.

It occurs to me that the metaphor of this purity test by fire at the day of judgment described in multiple scriptures and in the Book of Enoch may be a direct reference to this ancient metaphor. See 2 Nephi 9:16, 19, 26; Jacob 3:11; Jacob 6:10; Mosiah 3:27; etc.

Conclusion

These deep and seemingly ancient purification metaphors/doctrines related to gold and other treasure offer us a wonderful and sweeping view of God's plan for His children.  To realize our divine destiny, we must be able to overcome the short-term temptations which stem from the sins of the fallen angels. We must see ourselves as gold, not dross, and seek for God's hidden wisdom by consecrating our worldly riches for God's purposes. When we do this, as we read in the scriptures and in the apocryphal Book of Enoch, the earth finds harmony with heaven and creation flourishes. This is the way of mercy, made possible by Jesus Christ, and is the only way we can withstand the day of judgment.

We can tie all of these symbols together by reading Joseph Smith's words to the saints from 1842, found in Doctrine & Covenants 128:

23 Let the mountains shout for joy, and all ye valleys cry aloud; and all ye seas and dry lands tell the wonders of your Eternal King! And ye rivers, and brooks, and rills, flow down with gladness. Let the woods and all the trees of the field praise the Lord; and ye solid rocks weep for joy! And let the sun, moon, and the morning stars sing together, and let all the sons of God shout for joy! And let the eternal creations declare his name forever and ever! And again I say, how glorious is the voice we hear from heaven, proclaiming in our ears, glory, and salvation, and honor, and immortality, and eternal life; kingdoms, principalities, and powers!

24 Behold, the great day of the Lord is at hand; and who can abide the day of his coming, and who can stand when he appeareth? For he is like a refiner’s fire, and like fuller’s soap; and he shall sit as a refiner and purifier of silver, and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto the Lord an offering in righteousness. Let us, therefore, as a church and a people, and as Latter-day Saints, offer unto the Lord an offering in righteousness; and let us present in his holy temple, when it is finished, a book containing the records of our dead, which shall be worthy of all acceptation. (D&C 128)

Adam and Eve in the scriptures, part 2

In the last post, I focused on the number of times Adam and Eve are mentioned in each book of scripture.  I learned a few surprising things from that part of the study.  The next step was to take a qualitative look at each reference and compare how doctrine in connected to Adam and Eve.  In this regard, the Book of Mormon really stands out. First we'll look at references to Adam and Eve in each of the other books. This part will include the Bible and the Doctrine & Covenants and part three will include the Book of Abraham, Book of Moses, and Book of Mormon. I'll highlight the references which connect to doctrine, light yellow if it touches a little on core gospel doctrine, and a deeper yellow if it connects deeply with core doctrine.

The Old Testament

As discussed in part 1, 18 of the 21 references to Adam and Eve in the entire Old Testament happen in Genesis 1-5.  These occur as part of the narrative account -- there is no real discussion of doctrine, just a telling of the events that transpired.

The rest of the OT only contains 3 other references to Adam the person (there is one reference to a city called Adam in Joshua 3 which I excluded from this study):

1. Deuteronomy 32:8 -- "When the most High divided to the nations their inheritance, when he separated the sons of Adam, he set the bounds of the people according to the number of the children of Israel." (This is an oblique reference to Adam as the father of the human family.)
2. 1 Chronicles 1:1 -- "Adam, Sheth, Enosh," (This is the beginning of a genealogy.)
3. Job 31:33 -- "If I covered my transgressions as Adam, by hiding mine iniquity in my bosom:" (This is a reference to an event in the Garden of Eden.)

That's it for the entire Old Testament.  I don't see much, if any, deeper doctrine connected with these references.

New Testament

The New Testament contains a few references to Adam and Eve and includes some doctrine:

1. Luke 3:38 -- "Which was the son of Enos, which was the son of Seth, which was the son of Adam, which was the son of God." (Part of a genealogy.)
2. Romans 5:14 -- "Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam’s transgression, who is the figure of him that was to come." (These two mentions of Adam come in a doctrinal discussion about sin and death.)
3. 1 Corinthians 15:22 -- "For as in Adam all die, even so in Christ shall all be made alive." (This is a well-known verse in a doctrinal treatise on sin and atonement.)
4. 1 Timothy 2:13-14 -- "For Adam was first formed, then Eve. And Adam was not deceived, but the woman being deceived was in the transgression." (This set of references includes references to events in the Garden as well as some doctrinal discussion about the roles of men and women.)
5. Jude 1:14 -- "And Enoch also, the seventh from Adam, prophesied of these, saying, Behold, the Lord cometh with ten thousands of his saints," (This reference to Adam is only in passing.)

Doctrine & Covenants

For the sake of post length, I'm going to summarize the 31 references found in the Doctrine & Covenants a little more generally:

• Section 27: Connects Adam/Michael/Ancient of days.
• Section 29: "all things unto me are spiritual" / Satan rebelled before Adam and sought God's honor / Adam became subject to the will of the devil by partaking of the fruit / God gave Adam the gospel of repentance
• Section 78: Adam-ondi-Ahman
• Section 84: Abel received the priesthood "by the hand of his father Adam"
• Section 107: The history of the order of the priesthood / a description of the great priesthood meeting held prior to Adam's death
• Section 116: Identifying Adam-ondi-Ahman
• Section 117: Adam-ondi-Ahman
• Section 128: Keys of the priesthood
• Section 136: A promise that we shall behold God's glory if we are faithful in keeping all His words.
• Section 137: A vision of Adam in the celestial kingdom
• Section 138: Adam and Eve standing in the "vast congregation of the righteous" in the post-mortal spirit world

Conclusion

We're building to something here.  Notice how the Old Testament is essentially devoid of deeper doctrine connected to Adam and Eve.  The New Testament fares a little better. The Doctrine and Covenants does quite well in this regard.  In the next post, we'll see how the last three Books included in this investigation compare.

Heaven and earth -- Part 2

In part 1 we considered how the pairing of heaven and earth in scripture comes from an ancient Israelite tradition and signifies God's power and major events in his dealings with his children. An important part of that is his desire that we enter into covenants with Him. In Alma 7:9 that I quoted in part 1, the covenant term, "walk in his path", (that Lord Wilmore has recently written about, see here and here) is coupled with the heaven-earth dualism. There are many other examples of covenant terms appearing together with heaven-earth, like Mormon 9:11

But behold, I will show unto you a God of miracles, even the God of Abraham, and the God of Isaac, and the God of Jacob; and it is that same God who created the heavens and the earth, and all things that in them are. 

or Helaman 10:7

Behold, I give unto you power, that whatsoever ye shall seal on earth shall be sealed in heaven; and whatsoever ye shall loose on earth shall be loosed in heaven

or 1 Nephi 22:9

And it shall also be of worth unto the Gentiles; and not only unto the Gentiles but unto all the house of Israel, unto the making known of the covenants of the Father of heaven unto Abraham, saying: In thy seed shall all the kindreds of the earth be blessed.

There are several aspects of this heaven-earth pairing and covenant relation.

• When a covenant is entered into or renewed, both heaven and earth serve as witnesses. This was the backdrop for Deuteronomy 32:1, for example, quoted in part 1. See also D&C 128:2-7, where Joseph Smith explains the book-keeping both on earth and in heaven when ordinances are performed.
• A covenant is between a person on earth and a God in heaven. Covenant making unites the two. See for instance the verse just quoted from 1 Nephi 22. The Father of heaven blesses the people on earth by enabling them to ascend to His heavenly home through covenants.
• The major events listed in part 1, are all part of God's plan for his children and the covenant established "before the foundation of the world". The creation, the atonement, the restoration, etc. are all part of this and involve both heaven and earth. 

This realization made me think of the story of King Lamoni and see his dialogue with Ammon in a new light. I will try to explain as I go through some of those verses.

And Ammon said unto him again: Believest thou that this Great Spirit, who is God, created all things which are in heaven and in the earth? (Alma 18:28)

The heaven-earth coupling in the scriptures is often related to creation. This supports the idea of heaven-earth as a covenant symbol, because creation and covenant seem to originate from the same root, as Lord Wilmore has previously explained. See this post for an introduction and several other posts for more detail.

So in a sense, Ammon is asking King Lamoni if he is familiar with the covenants of God. Lamoni answers that he is not

And he said: Yea, I believe that he created all things which are in the earth; but I do not know the heavens. (Alma 18:29)

King Lamoni only knows about the earth/man/physical things. But since he is unfamiliar with heaven/God/spiritual things, he cannot make the connection between the two. The purpose of a covenant is to unite the two and bring them together. King Lamoni is not yet ready to do that. He needs to know about the heavens first. So Ammon explains.

And Ammon said unto him: The heavens is a place where God dwells and all his holy angels. (Alma 18:30)

Ammon is familiar with the heavens. He has even been visited by one of those "holy angels" as recounted in Mosiah 27. That chapter focuses on Alma but we know that Ammon was in the group. It is also interesting to see how Mormon describes the consequence of the angelic visit at the end Mosiah 27.

36 And thus they were instruments in the hands of God in bringing many to the knowledge of the truth, yea, to the knowledge of their Redeemer.

37 And how blessed are they! For they did publish peace; they did publish good tidings of good; and they did declare unto the people that the Lord reigneth.

In verse 37, Mormon quotes Isaiah 52 coupled with the term "blessed". This happens several times in the Book of Mormon and "blessed" seems to be referring to the Abrahamic covenant ("in thy seed shall all the kindreds of the earth be blessed"). See this post for details.

After having been visited by an angel, Ammon became "blessed" by entering into a covenant. After that he also became an angel/messenger (those two words have the same Hebrew root), a publisher of peace whose feet are on a mountain, according to Isaiah 52. The mountain is where heaven and earth meet. It is also often used as symbol of the temple where covenants are made. Lord Wilmore has written several posts about angels and used the phrase "see an angel, be an angel", as several stories in addition to Ammon show this pattern. Here is one example (see point 4). As for Ammon, Mormon includes this detail:

Now when Ammon and his brethren saw this work of destruction among those whom they so dearly beloved, and among those who had so dearly beloved them—for they were treated as though they were angels sent from God to save them from everlasting destruction—therefore, when Ammon and his brethren saw this great work of destruction, they were moved with compassion (Alma 27:4)

Notice how Ammon and his brethren were considered "angels sent from God" to the Lamanite converts. The exact same phrase that is used about the angel who once appeared to Ammon and his brethren.

And now behold, can ye dispute the power of God? For behold, doth not my voice shake the earth? And can ye not also behold me before you? And I am sent from God. (Mosiah 27:15)

So Ammon sees an angel, enters into a covenant as a result and becomes an angel to help others entering into the covenant, signified by the unification of heaven and earth. As Ammon goes on to teach Lamoni and his servants, he explains about those major events that I listed in part 1: The creation, the fall, the atonement and the whole plan of redemption. Lamoni and his servants believe and are converted. Mormon relates:

34 And behold, many did declare unto the people that they had seen angels and had conversed with them; and thus they had told them things of God, and of his righteousness.

35 And it came to pass that there were many that did believe in their words; and as many as did believe were baptized; and they became a righteous people, and they did establish a church among them.

See what happened to the Lamanite converts? They too learned about "the heavens" as they saw angels who told them "things of God". Now they were ready for the heaven-earth connection, the first covenant of baptism. Later, we learn that they also made a covenant pertaining to their use of weapons (see Alma 24:18).

Isaiah 52:7-10 in other scripture

In the previous post about Isaiah 52, I wanted to include all references in our standard works but it became a bit long. Having discussed the influence of Isaiah 52:7-10 in the Book of Mormon only in the last post, I will focus on the other standard works in this post. We find references to these verses in the Old Testament, New Testament and D&C.

Of particular interest is Nahum 1:15, an Old Testament prophet whose name comes from the Hebrew root for "consolation" or "mourning". He shares his name with a location on the Arabian peninsula where Ishmael was buried, as we read in 1 Nephi 16. The verse reads

Behold upon the mountains the feet of him that bringeth good tidings, that publisheth peace! O Judah, keep thy solemn feasts, perform thy vows: for the wicked shall no more pass through thee; he is utterly cut off.

The first sentence is definitely related to Isaiah 52:7. Little is known about Nahum and I don't know if Wikipedia is the best source, but it states

Nahum's writings could be taken as prophecy or as history. One account suggests that his writings are a prophecy written in about 615 BC, just before the downfall of Assyria, while another account suggests that he wrote this passage as liturgy just after its downfall in 612 BC.

Whether it's 615 BC or 612 BC doesn't make that much of a difference to me. It is written perhaps a decade or two before Nephi took the brass plates and they headed to the promised land. Scholars who claim that Isaiah 52 was part of Deutero-Isaiah, written during the Jewish exile, must conclude that Isaiah 52 was based on Nahum, not the other way around. I think it makes more sense that Nahum borrowed from Isaiah based on the following reasons:

• Notice how this sentence is part of a longer clause in Isaiah 52:7. In Nahum 1:5, it is just this one sentence without further elaboration. It is natural for me to think that the longer clause is the original and someone borrowed a part of it, instead of one sentence being original and someone borrows it and expands on it. This is not hard proof of course, just something I find more likely.
• It is also natural to assume that the "small" prophet borrows from the "great", not the other way around.
• Since I believe in the historicity of the Book of Mormon, I am biased here, but we have noticed that Isaiah 52:7-10 is quoted multiple times in the Book of Mormon, not Nahum. If Nahum 1:15 was written shortly before Lehi and his group left Jerusalem and was based on Isaiah, it might further indicate that Isaiah in general and this passage in particular already had a prominent position in Lehi's religious environment.

In the New Testament, this is quoted once, in Romans 10:15.

And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!

Other parts of Isaiah 52 and Isaiah 53 are also quoted liberally in the New Testament. Those two chapters alone comprise 19% of all Isaiah quotes in the New Testament.

There are also two Isaiah 52:7-10 quotes in the D&C. D&C 84:98 quotes Isaiah 52:8-9:

Until all shall know me, who remain, even from the least unto the greatest, and shall be filled with the knowledge of the Lord, and shall see eye to eye, and shall lift up their voice, and with the voice together sing this new song, saying:

D&C 128:19 quotes Isaiah 52:7:

Now, what do we hear in the gospel which we have received? A voice of gladness! A voice of mercy from heaven; and a voice of truth out of the earth; glad tidings for the dead; a voice of gladness for the living and the dead; glad tidings of great joy. How beautiful upon the mountains are the feet of those that bring glad tidings of good things, and that say unto Zion: Behold, thy God reigneth! As the dews of Carmel, so shall the knowledge of God descend upon them!

These examples show this Isaiah passage used in various context. In Nahum, the feet belong to the messenger who announces the destruction of Judah's enemies and her deliverance. Romans is about preaching the gospel and missionary work. The context for the Isaiah quote in D&C 84 is the ultimate spiritual redemption of Zion in the latter days and D&C 128 is about the redemption of the dead.

The beautiful feet on the mountain belong to whoever proclaims redemption, whether it is physical redemption from your enemies, personal redemption from receiving the gospel in your life, the ultimate redemption of Zion in the latter days or the redemption of the dead. The feet can belong to missionaries, messengers, angels, prophets, and even Christ himself (Mosiah 15:18). More on the symbolism of beautiful feet in Lord Wilmore's posts here, here and here.