Numbers 18:15-16

New International Version

¹⁵ The first offspring of every womb, both human and animal, that is offered to the Lord is yours.^(A) But you must redeem^(B) every firstborn^(C) son and every firstborn male of unclean animals.^{(D) 16} When they are a month old,^(E) you must redeem them at the redemption price set at five shekels^[a](F) of silver, according to the sanctuary shekel,^(G) which weighs twenty gerahs.^(H)