Deuteronomy 15:18-20 Holman Christian Standard Bible (HCSB)
18 Do not regard it as a hardship[a] when you set him free, because he worked for you six years—worth twice the wages of a hired hand. Then the Lord your God will bless you in everything you do.
Consecration of Firstborn Animals
19 “You must consecrate to the Lord your God every firstborn male produced by your herd and flock. You are not to put the firstborn of your oxen to work or shear the firstborn of your flock. 20 Each year you and your family are to eat it before the Lord your God in the place the Lord chooses.