“You shall not delay to make offerings from the fullness of your harvest and from the outflow of your presses. “The firstborn of your sons you shall give to me.
The first issue of the womb of all creatures, human and animal, that is offered to the Lord shall be yours, but the firstborn of human beings you shall redeem, and the firstborn of unclean animals you shall redeem.
for all the firstborn are mine; when I killed all the firstborn in the land of Egypt, I consecrated for my own all the firstborn in Israel, both human and animal; they shall be mine. I am the Lord.”