Numbers 3:46-48

Revised Standard Version

⁴⁶ And for the redemption of the two hundred and seventy-three of the first-born of the people of Israel, over and above the number of the male Levites, ⁴⁷ you shall take five shekels apiece; reckoning by the shekel of the sanctuary, the shekel of twenty gerahs, you shall take them, ⁴⁸ and give the money by which the excess number of them is redeemed to Aaron and his sons.”