Leviticus 22:2

Overview - Leviticus 22
The priests in their uncleanness must abstain from the holy things.
How they shall be cleansed.
10 Who of the priest's house may eat of the holy things.
17 The sacrifices must be without blemish.
26 The age of the sacrifice.
29 The law of eating the sacrifice of thanksgiving.
Treasury of Scripture Knowledge

Leviticus 22:2  (King James Version)
Speak unto Aaron and to his sons, that they separate themselves from the holy things of the children of Israel, and that they profane not my holy name in those things which they hallow unto me: I am the LORD.

3-6 ; 15:31 Numbers 6:3-8

that they profane not
This is the very ground of the prohibition, that they might preserve in their minds a holy reverence for the Divine Majesty. Hence when they approached unto him, they must be free from every legal impurity. If great men are to be approached with respect, how much more must Jehovah be approached with holy reverence!
32 ; 18:21 19:12 20:3 21:6

Exodus 13:12 ; 28:38 Numbers 18:32 ; Deuteronomy 15:19