Exodus 40:12

40:12 “You are to bring Aaron and his sons to the entrance of the tent of meeting and wash them with water.

Exodus 29:3

29:3 You are to put them in one basket and present them in the basket, along with the bull and the two rams.

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.