"Heart" and "Soul" in 2 Nephi 4

It has been noted that Hebrew poetry often uses certain word pairs to create parallels and contrast.  "Heart" (Hebrew 'leb/lebab') and "soul" (Hebrew 'nephesh') are one such pair.

Notice the 7 verses which pair these words in 2 Nephi 4:

Verse 15

15 And upon these I write the things of my soul, and many of the scriptures which are engraven upon the plates of brass. For my soul delighteth in the scriptures, and my heart pondereth them, and writeth them for the learning and the profit of my children.

Verse 16

16 Behold, my soul delighteth in the things of the Lord; and my heart pondereth continually upon the things which I have seen and heard.

Verse 17

17 Nevertheless, notwithstanding the great goodness of the Lord, in showing me his great and marvelous works, my heart exclaimeth: O wretched man that I am! Yea, my heart sorroweth because of my flesh; my soul grieveth because of mine iniquities.

Verse 26

26 O then, if I have seen so great things, if the Lord in his condescension unto the children of men hath visited men in so much mercy, why should my heart weep and my soul linger in the valley of sorrow, and my flesh waste away, and my strength slacken, because of mine afflictions?

Verse 27

27 And why should I yield to sin, because of my flesh? Yea, why should I give way to temptations, that the evil one have place in my heart to destroy my peace and afflict my soul? Why am I angry because of mine enemy?

Verse 28

28 Awake, my soul! No longer droop in sin. Rejoice, O my heart, and give place no more for the enemy of my soul.

Verse 30

30 Rejoice, O my heart, and cry unto the Lord, and say: O Lord, I will praise thee forever; yea, my soul will rejoice in thee, my God, and the rock of my salvation.

Hat tip: Kevin Barney.