Deuteronomy 15:18-20

New International Version

¹⁸ Do not consider it a hardship to set your servant free, because their service to you these six years has been worth twice as much as that of a hired hand. And the Lord your God will bless you in everything you do.

The Firstborn Animals

¹⁹ Set apart for the Lord^(A) your God every firstborn male^(B) of your herds and flocks.^(C) Do not put the firstborn of your cows to work, and do not shear the firstborn of your sheep.^{(D) 20} Each year you and your family are to eat them in the presence of the Lord your God at the place he will choose.^(E)