Deuteronomy 15:13

10 But it is right for you to give to him, without grief of heart: for because of this, the blessing of the Lord your God will be on all your work and on everything to which you put your hand.

11 For there will never be a time when there are no poor in the land; and so I give orders to you, Let your hand be open to your countrymen, to those who are poor and in need in your land.

12 If one of your countrymen, a Hebrew man or woman, becomes your servant for a price and does work for you six years, in the seventh year let him go free.

13 And when you make him free, do not let him go away with nothing in his hands:

14 But give him freely from your flock and from your grain and your wine: in the measure of the wealth which the Lord your God has given you, you are to give to him.

15 And keep in mind that you yourself were a servant in the land of Egypt, and the Lord your God made you free: so I give you this order today.

16 But if he says to you, I have no desire to go away from you; because you and your family are dear to him and he is happy with you;