Numbers 3:39-41

Common English Bible

³⁹ The total enrollment of the Levites, all the males over one month old whom Moses and Aaron enrolled by orders from the Lord, according to their clans, was 22,000.

Levites rescue the oldest male Israelites

⁴⁰ The Lord said to Moses: Enroll all the oldest males of the Israelites over one month of age and record their names. ⁴¹ Take the Levites for me, in place of all the oldest sons of the Israelites, for I am the Lord, and the cattle of the Levites in place of all the oldest cattle of the Israelites.