The Jewish Bible title "Vayikra" means "He called"
The Talmud refers to this book as the "Law of the priests" and the "Law of the offerings"
The title of this book is somewhat misleading as it deals more with the priests (a small segment of the Levites) than with the actual tribe of Levites as a whole.
The book of Leviticus is a primer for moral and ethical instructions for the Israelites. It covers all the civil, ceremonial, sanitary, moral and religious laws. All of the offerings and laws served to remind Israel that God was holy and could be directly approached by the priests alone. The priests in turn would intercede for the people who came to offer sacrifices to God for the covering and forgiveness of their sins.
The sacrifices of animals for Man's sin were symbolic, and pointed to the ultimate sacrifice which would
completely take away sin for the whole world, Jesus Christ.
29 The next day John saw Jesus coming toward him, and said, "Behold! The Lamb of God
who takes away the sin of the world!
11 Therefore, if perfection were through the Levitical priesthood (for under it the people received the Law), what further need was there that another priest should rise according to the order of Melchizedek, and not be called according to the order of Aaron?
12 For the priesthood being changed, of necessity there is also a change of the law.
13 For He of whom these things are spoken belongs to another tribe, from which no man has officiated at the altar.
14 For it is evident that our Lord arose from Judah, of which tribe Moses spoke nothing concerning priesthood.
15 And it is yet far more evident if, in the likeness of Melchizedek, there arises another priest
16 who has come, not according to the law of a fleshly commandment, but according to the power of an endless life.
17 For He testifies: "You are a priest forever According to the order of Melchizedek."
18 For on the one hand there is an annulling of the former commandment because of its weakness and unprofitableness,
19 for the law made nothing perfect; on the other hand, there is the bringing in of a better hope, through which we draw near to God.
20 And inasmuch as He was not made priest without an oath
21 (for they have become priests without an oath, but He with an oath by Him who said to Him: "The LORD has sworn and will not relent, 'You are a priest forever According to the order of Melchizedek'"),
22 by so much more Jesus has become a surety of a better covenant.
23 Also there were many priests, because they were prevented by death from continuing.
24 But He, because He continues forever, has an unchangeable priesthood.
25 Therefore He is also able to save to the uttermost those who come to God through Him, since He always lives to make intercession for them.
26 For such a High Priest was fitting for us, who is holy, harmless, undefiled, separate from sinners, and has become higher than the heavens;
27 who does not need daily, as those high priests, to offer up sacrifices, first for His own sins and then for the people's, for this He did once for all when He offered up Himself.
28 For the law appoints as high priests men who have weakness, but the word of the oath, which came after the law, appoints the Son who has been perfected forever.