Numbers 3:41, 45

You are to take the Levites for me — I am the LORD  — in place of every firstborn among the Israelites, and the Levites’ cattle in place of every firstborn among the Israelites’ cattle.”

“Take the Levites in place of every firstborn among the Israelites, and the Levites’ cattle in place of their cattle. The Levites belong to me; I am the LORD.