Numbers 3:41-43

New Century Version

⁴¹ Take the Levites for me instead of the firstborn sons of Israel; take the animals of the Levites instead of the firstborn animals from the rest of Israel. I am the Lord.”

⁴² So Moses did what the Lord commanded and counted all the firstborn sons of the Israelites. ⁴³ When he listed all the firstborn sons one month old or older, there were 22,273 names.