Numbers 18:15
The firstborn of every womb which they present to the Lord, whether human or animal, will be yours. Nevertheless, the firstborn sons you must redeem, and the firstborn males of unclean animals you must redeem.
Exodus 34:20
Now the firstling of a donkey you may redeem with a lamb, but if you do not redeem it, then break its neck. You must redeem all the firstborn of your sons. "No one will appear before me empty-handed.
Exodus 13:2
"Set apart to me every firstborn male -- the first offspring of every womb among the Israelites, whether human or animal; it is mine."
Exodus 13:12-13
then you must give over to the Lord the first offspring of every womb. Every firstling of a beast that you have -- the males will be the Lord's.
Exodus 22:29
"Do not hold back offerings from your granaries or your vats. You must give me the firstborn of your sons.
Leviticus 27:26-27
"'Surely no man may consecrate a firstborn that already belongs to the Lord as a firstborn among the animals; whether it is an ox or a sheep, it belongs to the Lord.
Numbers 3:13
because all the firstborn are mine. When I destroyed all the firstborn in the land of Egypt, I set apart for myself all the firstborn in Israel, both man and beast. They belong to me. I am the Lord."
Numbers 3:46
And for the redemption of the 273 firstborn males of the Israelites who exceed the number of the Levites,