Leviticus 21:6

21:6 “‘They must be holy to their God, and they must not profane the name of their God, because they are the ones who present the Lord’s gifts, the food of their God. Therefore they must be holy.

Exodus 19:10

19:10 The Lord said to Moses, “Go to the people and sanctify them today and tomorrow, and make them wash their clothes

Exodus 19:14

19:14 Then Moses went down from the mountain to the people and sanctified the people, and they washed their clothes.

Exodus 28:41

28:41 “You are to clothe them – your brother Aaron and his sons with him – and anoint them and ordain them and set them apart as holy, so that they may minister as my priests.

Exodus 29:1

The Consecration of Aaron and His Sons

29:1 “Now this is what you are to do for them to consecrate them so that they may minister as my priests. Take a young bull and two rams without blemish;

Exodus 29:43-44

29:43 There I will meet with the Israelites, and it will be set apart as holy by my glory.

29:44 “So I will set apart as holy the tent of meeting and the altar, and I will set apart as holy Aaron and his sons, that they may minister as priests to me.