Deuteronomy 15:17-19

Revised Standard Version

¹⁷ then you shall take an awl, and thrust it through his ear into the door, and he shall be your bondman for ever. And to your bondwoman you shall do likewise. ¹⁸ It shall not seem hard to you, when you let him go free from you; for at half the cost of a hired servant he has served you six years. So the Lord your God will bless you in all that you do.

The Firstborn of Livestock

¹⁹ “All the firstling males that are born of your herd and flock you shall consecrate to the Lord your God; you shall do no work with the firstling of your herd, nor shear the firstling of your flock.