“You shall not delay to offer from the fulness of your harvest and from the outflow of your presses. “The first-born of your sons you shall give to me.
Everything that opens the womb of all flesh, whether man or beast, which they offer to the Lord, shall be yours; nevertheless the first-born of man you shall redeem, and the firstling of unclean beasts you shall redeem.
for all the first-born are mine; on the day that I slew all the first-born in the land of Egypt, I consecrated for my own all the first-born in Israel, both of man and of beast; they shall be mine: I am the Lord.”