Numbers 18:14-16 GOD’S WORD Translation (GW)
14 “Anything in Israel that is claimed by the Lord is yours. 15 Every firstborn male, human or animal, that is brought to the Lord 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.