Deuteronomy 15:18-20 Living Bible (TLB)
18 But when you free a slave you must not feel bad, for remember that for six years he has cost you less than half the price of a hired hand! And the Lord your God will prosper all you do because you have released him!
19 “You shall set aside for God all the firstborn males from your flocks and herds. Do not use the firstborn of your herds to work your fields, and do not shear the firstborn of your flocks of sheep and goats. 20 Instead, you and your family shall eat these animals before the Lord your God each year at his sanctuary.