We often meet with those reasons, and undoubtedly they are very cogent ones. Here is GOD'S authority as GOD. Here is added to this his gracious character as their covenant GOD. And as if these were not enough, here is added that striking instance of his covenant-mercy in their redemption from Egypt.
Related Commentaries of Leviticus 22:29
Leviticus 22:29-33
29 And when ye will offer a sacrifice of thanksgiving unto the LORD, offer it at your own will.
30 On the same day it shall be eaten up; ye shall leave none of it until the morrow: I am the LORD.
31 Therefore shall ye keep my commandments, and do them: I am the LORD.
32 Neither shall ye profane my holy name; but I will be hallowed among the children of Israel: I am the LORD which hallow you,
33 That brought you out of the land of Egypt, to be your God: I am the LORD.