44 For I am the Lord your God: ye shall therefore yourselves, and ye shall be holy; for I am holy: ...
45 For I am the Lord that bringeth you up out of the land of Egypt, to be your God: ye shall therefore be holy, for I am holy. (Leviticus 11)
18 As thou hast me into the world, even so have I also sent them into the world.
19 And for their sakes I myself, that they also might be sanctified through the truth.
20 Neither I for these alone, but for them also which shall on me through their word;
21 That they all may be ; as thou, , art in me, and I in thee, that they also may be in us: that the world may believe that thou hast sent me.
22 And the glory which thou gavest me I have given them; that they may be , even as we are : (John 17)
Degrees of Holiness
This note from the NRSV Cultural Backgrounds Study Bible explains the structure of the camp of Israel:
The sacred camp of Israel had been numbered and organized with concentric circles of holiness; the priests and Levites constituted the first level of human presence in proximity to the sanctuary (the tent of meeting). The 12 tribes encamped symmetrically around the central sanctuary and its attendants constituted the second level of human presence in the camp. Now the next level of the encampment is described in terms of relative cultic isolation on the perimeter of the camp of those with various impurities. (Footnote to Numbers 5:1-4)
Here is a screenshot from that clip:
54 They are they who are the of the .
55 They are they into whose hands the Father has given things—
56 They are they who are and , who have received of his fulness, and of his glory;
57 And are of the Most High, after the order of Melchizedek, which was after the order of , which was after the of the Only Begotten Son.
58 Wherefore, as it is written, they are , even the of —
59 Wherefore, things are theirs, whether life or death, or things present, or things to come, all are theirs and they are Christ’s, and Christ is God’s.
60 And they shall all things.
61 Wherefore, let no man in man, but rather let him in God, who shall all enemies under his feet.
62 These shall in the of God and his Christ forever and ever.
63 These are they whom he shall bring with him, when he shall in the of heaven to on the earth over his people.
64 These are they who shall have part in the .
65 These are they who shall come forth in the resurrection of the .
66 These are they who are come unto , and unto the city of the living God, the heavenly place, the holiest of all.
67 These are they who have come to an innumerable company of , to the general assembly and church of , and of the .
68 These are they whose names are in heaven, where God and Christ are the of all.
69 These are they who are men made through Jesus the mediator of the , who wrought out this perfect through the shedding of his own .
70 These are they whose bodies are , whose is that of the , even the glory of God, the of all, whose glory the sun of the firmament is written of as being typical. (Doctrine & Covenants 76)
One last thought on this topic: The innermost ring on the image above is different from the others in a very important way -- in requires a high degree of unity and oneness with God and others. Salvation is worked out individually, exaltation happens as a covenant people progress in unity and righteousness. This is exemplified by the Levite priests, who were responsible for carrying out the rituals of the temple in a way that allowed the entire congregation to be holy. Today, this is exemplified by the centrality of the family.
In God’s eternal plan, salvation is an individual matter; exaltation is a family matter. -President Russell M. Nelson