Exodus 6:13

6:13 The Lord spoke to Moses and Aaron and gave them a charge for the Israelites and Pharaoh king of Egypt to bring the Israelites out of the land of Egypt.

Exodus 29:28

29:28 It is to belong to Aaron and to his sons from the Israelites, by a perpetual ordinance, for it is a contribution. It is to be a contribution from the Israelites from their peace offerings, their contribution to the Lord.

Exodus 30:16

30:16 You are to receive the atonement money from the Israelites and give it for the service of the tent of meeting. It will be a memorial for the Israelites before the Lord, to make atonement for your lives.”