Exodus 34:19
"All that opens the womb is mine; and all your livestock that is male, the firstborn of cow and sheep.
Exodus 13:2
"Sanctify to me all of the firstborn, whatever opens the womb among the children of Israel, both of man and of animal. It is mine."
Exodus 22:29
"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.
Exodus 13:12
that you shall set apart to Yahweh all that opens the womb, and every firstborn which you have that comes from an animal. The males shall be Yahweh's.
Numbers 18:15-17
Everything that opens the womb, of all flesh which they offer to Yahweh, 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.
Ezekiel 44:30
The 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.
Luke 2:23
(as it is written in the law of the Lord, "Every male who opens the womb shall be called holy to the Lord"),