Leviticus 27:25-27

Amplified Bible, Classic Edition

²⁵ And all your valuations shall be according to the sanctuary shekel; twenty gerahs shall make a shekel.

²⁶ But the firstling of the animals, since a firstling belongs to the Lord, no man may dedicate, whether it be ox or sheep. It is the Lord’s [already].

²⁷ If it be of an unclean animal, the owner may redeem it according to your valuation, and shall add a fifth to it; or if it is not redeemed, then it shall be sold according to your valuation.