thou shalt

Exodus 13:2
"Consecrate to Me every firstborn male. The firstborn from every womb among the Israelites belongs to Me, both of man and beast."

Exodus 22:29
You must not hold back offerings from your granaries or vats. You are to give Me the firstborn of your sons.

Exodus 34:19
The first offspring of every womb belongs to Me, including all the firstborn males among your livestock, whether cattle or sheep.

Leviticus 27:26
But no one may consecrate a firstborn of the livestock, because a firstborn belongs to the LORD. Whether an animal from the herd or flock, it is the LORD's.

Numbers 8:17
For every firstborn among the sons of Israel is Mine, both man and beast. I set them apart for Myself on the day I struck down all the firstborn in the land of Egypt.

Numbers 18:15
The firstborn of every womb, whether man or beast, that is offered to the LORD belongs to you. But you must surely redeem every firstborn son and every firstborn male of unclean animals.

Deuteronomy 15:19
You must set apart to the LORD your God every firstborn male produced by your herds and flocks. You are not to put the firstborn of your oxen to work or shear the firstborn of your flock.

Ezekiel 44:30
The best of all the firstfruits and of every contribution from all your offerings will belong to the priests. You are to give your first batch of dough to the priest, so that a blessing may rest upon your homes.

set apart.

Exodus 34:19
The first offspring of every womb belongs to Me, including all the firstborn males among your livestock, whether cattle or sheep.

Numbers 3:12
"Behold, I have taken the Levites from among the children of Israel in place of every firstborn Israelite from the womb. The Levites belong to Me,

Numbers 18:15
The firstborn of every womb, whether man or beast, that is offered to the LORD belongs to you. But you must surely redeem every firstborn son and every firstborn male of unclean animals.