Leviticus 7 - 13

The law of Moses was given as a means to an end. Notwithstanding the great signs and miracles given by the Lord, it was very difficult to get "Egypt", the idols and traditions of the Egyptians out of the hearts of the children of Israel. We can see this in the making of the golden calf. Again, a testament that miracles and signs seem to provide no conversion. For it is -

"A wicked and adulterous generation seeketh after a sign..." (New Testament Matthew 16:4)

It appears that after all was done to sanctify the people in the wilderness, the Lord seemed to resort back to the basics with the children of Israel in teaching obedience and commandments to prepare them to receive the Spirit and bring them to Christ. It is obvious that the children of Israel had become spiritually weak an immature.

Much of the law was in regards to sacrifice this being -

"...the whole meaning of the law, every whit pointing to that great and last sacrifice; and that great and last sacrifice will be the Son of God, yea, infinite and eternal." (Book of Mormon Alma 34:14)

But the law also included issues of health and related procedures. This is much different in modern day as the Lord revealed the Word of Wisdom being -

"A WORD OF WISDOM, for the benefit of ...the church, and also the saints in Zion—
2 To be sent greeting; not by commandment or constraint, but by revelation and the word of wisdom, showing forth the order and will of God in the temporal salvation of all saints in the last days—
3 Given for a principle with promise, adapted to the capacity of the weak and the weakest of all saints, who are or can be called saints." (Doctrine and Covenants Section 89:1 - 3)

I see this revelation as one that was not much different as that in the law of Moses. The Lord's intent was to take the weakest of saints, and through obedience, develop sufficient faith and spiritual strength to prepare them for greater things, such that -

"... you should hearken unto me, and open your ears that ye may hear, and your hearts that ye may understand, and your minds that the mysteries of God may be unfolded to your view." (Book of Mormon Mosiah 2:9)

Wherefore the Law of Moses -

"...was [their] schoolmaster to bring [them] unto Christ, that [they] might be justified by faith." (New Testament Galatians 3:24)

As we begin to understand the patience and love of God, we -

"...come to a knowledge of the goodness of God, and his matchless power, and his wisdom, and his patience, and his long-suffering towards the children of men; and also, the atonement which has been prepared from the foundation of the world, that thereby salvation might come to him that should put his trust in the Lord, and should be diligent in keeping his commandments, and continue in the faith even unto the end of his life... this is the man who receiveth salvation, through the atonement which was prepared from the foundation of the world for all mankind..." (Book of Mormon Mosiah 4:6 - 7)