Exodus 29:10

29:10 “You are to present the bull at the front of the tent of meeting, and Aaron and his sons are to put their hands on the head of the bull.

Exodus 29:44

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.

Leviticus 3:8

3:8 He must lay his hand on the head of his offering and slaughter it before the Meeting Tent, and the sons of Aaron must splash its blood against the altar’s sides.

Numbers 8:9

8:9 You are to bring the Levites before the tent of meeting and assemble the entire community of the Israelites.