Deuteronomy 15:18-20

Amplified Bible

¹⁸ “It shall not seem hard to you when you set him free, for he has served you six years with double the service of a hired man; so the Lord your God will bless you in everything you do.

¹⁹ “You shall consecrate (set apart) to the Lord your God all the firstborn males that are born of your herd and flock. You shall not work with the firstborn of your herd, nor shear the firstborn of your flock. ²⁰ You and your household shall eat it every year before the Lord your God in the place [for worship] which the Lord chooses.