TSK · Exodus 13:12

“You must not blaspheme God or curse the ruler of your people.

“Every firstborn of the womb belongs to me, even every firstborn of your cattle that is a male, whether ox or sheep.

Redemption of the Firstborn“‘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.

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.”

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.

We also accept responsibility, as is written in the law, for bringing the firstborn of our sons and our cattle and the firstborn of our herds and of our flocks to the temple of our God, to the priests who are ministering in the temple of our God.

The first of all the first fruits and all contributions of any kind will be for the priests; you will also give to the priest the first portion of your dough, so that a blessing may rest on your house.