Numbers 3:40-42

New Catholic Bible

⁴⁰ Redemption of the Firstborn. The Lord said to Moses, “Count all the firstborn males of the people of Israel, those one month old and older, and make a list of their names. ⁴¹ The Levites will be a substitute for me in place of the firstborn of the people of Israel. I am the Lord. The cattle of the Levites will be a substitute for the firstborn of the cattle of the people of Israel.”

⁴² Moses counted all of the firstborn of the people of Israel as the Lord had commanded him