Numbers 18:15-17 »Every firstborn male, human or animal that is brought to Jehovah is yours. But you must buy back every firstborn son and the firstborn male of any unclean animal.

NSB⁽ⁱ⁾ ¹⁵ »Every firstborn male, human or animal that is brought to Jehovah is yours. But you must buy back every firstborn son and the firstborn male of any unclean animal. ¹⁶ »When they are one month old, you must buy them back at the fixed price of two ounces of silver using the standard weight of the holy place. ¹⁷ »You must never buy back a firstborn bull, sheep, or goat. They are holy. Throw the blood from these animals against the altar. Burn the fat as an offering by fire, a soothing aroma to Jehovah.