Numbers 3:44-51

New Revised Standard Version, Anglicised

⁴⁴ Then the Lord spoke to Moses, saying: ⁴⁵ Accept the Levites as substitutes for all the firstborn among the Israelites, and the livestock of the Levites as substitutes for their livestock; and the Levites shall be mine. I am the Lord. ⁴⁶ As the price of redemption of the two hundred and seventy-three of the firstborn of the Israelites, over and above the number of the Levites, ⁴⁷ you shall accept five shekels apiece, reckoning by the shekel of the sanctuary, a shekel of twenty gerahs. ⁴⁸ Give to Aaron and his sons the money by which the excess number of them is redeemed. ⁴⁹ So Moses took the redemption money from those who were over and above those redeemed by the Levites; ⁵⁰ from the firstborn of the Israelites he took the money, one thousand three hundred and sixty-five shekels, reckoned by the shekel of the sanctuary; ⁵¹ and Moses gave the redemption money to Aaron and his sons, according to the word of the Lord, as the Lord had commanded Moses.