Numbers 3:13-15

Christian Standard Bible

¹³ because every firstborn belongs to me. At the time I struck down every firstborn in the land of Egypt,^(A) I consecrated every firstborn in Israel to myself, both man and animal. They are mine; I am the Lord.”^(B)

The Levitical Census

¹⁴ The Lord spoke to Moses in the Wilderness of Sinai: ¹⁵ “Register the Levites by their ancestral families^[a] and their clans. You are to register every male one month old or more.”