Numbers 3:40-41 ▼

40 Yahweh said to Moses, “Count all the firstborn males of the children of Israel from a month old and upward, and take the number of their names.

41 You shall take the Levites for me—I am Yahweh—instead of all the firstborn among the children of Israel; and the livestock of the Levites instead of all the firstborn among the livestock of the children of Israel.”