Exodus 34:19

²“Sanctify to me all the firstborn, whatever opens the womb among the children of Israel, both of man and of animal. It is mine.”

²⁹“You shall not delay to offer from your harvest and from the outflow of your presses. “You shall give the firstborn of your sons to me.

¹²that you shall set apart to the LORD all that opens the womb, and every firstborn that comes from an animal which you have. The males shall be the LORD’s.

¹⁵Everything that opens the womb, of all flesh which they offer to the LORD, both of man and animal, shall be yours. Nevertheless, you shall surely redeem the firstborn of man, and you shall redeem the firstborn of unclean animals. ¹⁶You shall redeem those who are to be redeemed of them from a month old, according to your estimation, for five shekels of money, according to the shekel^[+] of the sanctuary, which weighs twenty gerahs.

¹⁷“^[+] But you shall not redeem the firstborn of a cow, or the firstborn of a sheep, or the firstborn of a goat. They are holy. You shall sprinkle their blood on the altar, and shall burn their fat for an offering made by fire, for a pleasant aroma to the LORD.

³⁰The first of all the first fruits of every thing, and every offering of everything, of all your offerings, shall be for the priest. You shall also give to the priests the first of your dough, to cause a blessing to rest on your house.

²³(as it is written in the law of the Lord, “Every male who opens the womb shall be called holy to the Lord”),