Numbers 3:41-45

Leeser(i) 41 And thou shalt take the Levites for me, I am the Lord, instead of all the first-born among the children of Israel; and the cattle of the Levites instead of all the first-born among the cattle of the children of Israel. 42 And Moses numbered, as the Lord had commanded him, all the first-born among the children of Israel. 43 And all the first-born males, by the numbering of the names, from a month old and upward, of those that were numbered of them, were twenty and two thousand two hundred and seventy and three. 44 And the Lord spoke unto Moses, saying, 45 Take the Levites instead of all the first-born among the children of Israel, and the cattle of the Levites instead of their cattle; and the Levites shall be mine: I am the Lord.