Numbers 18:16-18

Lexham English Bible

¹⁶ As to their price of redemption, from a one-month-old^[a] you will redeem them according to your proper value, five shekels of silver according to the shekel of the sanctuary, which is twenty gerah. ¹⁷ Only the firstborn of an ox or the firstborn of a sheep or the firstborn of a goat you will not redeem; they are holy. Their blood you will sprinkle over the altar, and their fat you will turn into smoke as an offering made by fire, a fragrance of appeasement for Yahweh. ¹⁸ But their flesh will be for you like the breast section of the wave offering, and it will be for you like the right upper thigh.