Leviticus 10:3

10:3 Moses then said to Aaron, “This is what the Lord spoke: ‘Among the ones close to me I will show myself holy, and in the presence of all the people I will be honored.’” So Aaron kept silent.

Leviticus 22:2

22:2 “Tell Aaron and his sons that they must deal respectfully with the holy offerings of the Israelites, which they consecrate to me, so that they do not profane my holy name. I am the Lord.