Leviticus 22:29-33

And when ye will offer a sacrifice of thanksgiving unto the LORD, offer it at your own will.

On the same day it shall be eaten up; ye shall leave none of it until the morrow: I am the LORD.

Therefore shall ye keep my commandments, and do them: I am the LORD.

Neither shall ye profane my holy name; but I will be hallowed among the children of Israel: I am the LORD which hallow you,

That brought you out of the land of Egypt, to be your God: I am the LORD.