Numbers 3:39-41

New English Translation

³⁹ All who were numbered of the Levites, whom Moses and Aaron numbered by the word^[a] of the Lord, according to their families, every male from a month old and upward, were 22,000.

The Substitution for the Firstborn

⁴⁰ Then the Lord said to Moses, “Number all the firstborn males of the Israelites from a month old and upward, and take^[b] the number of their names. ⁴¹ And take^[c] the Levites for me—I am the Lord—instead of all the firstborn males among the Israelites, and the livestock of the Levites instead of all the firstborn of the livestock of the Israelites.”