Numbers 18:14-16 Complete Jewish Bible (CJB)
14 “Everything in Isra’el which has been consecrated unconditionally is to be yours.
15 “Everything that comes first out of the womb, of all living things which they offer to Adonai, whether human or animal, will be yours. However, the firstborn of a human being you must redeem, and the firstborn of an unclean beast you are to redeem. 16 The sum to be paid for redeeming anyone a month old or over is to be five shekels of silver [two ounces], as you value it, using the sanctuary shekel (this is the same as twenty gerahs).