Numbers 3:41-43

Revised Standard Version

⁴¹ And you shall take the Levites for me— I am the Lord—instead of all the first-born among the people of Israel, and the cattle of the Levites instead of all the firstlings among the cattle of the people of Israel.” ⁴² So Moses numbered all the first-born among the people of Israel, as the Lord commanded him. ⁴³ And all the first-born males, according to the number of names, from a month old and upward as numbered were twenty-two thousand two hundred and seventy-three.