Leviticus 25:35-46

‘Now if your fellow countryman becomes poor and his hand falters with you [that is, he has trouble repaying you for something], then you are to help and sustain him, [with courtesy and consideration] like [you would] a stranger or a temporary resident [without property], so that he may live among you. [1 John 3:17] Do not charge him usurious interest, but fear your God [with profound reverence], so your countryman may [continue to] live among you. You shall not give him your money at interest, nor your food at a profit. I am the LORD your God, who brought you out of the land of Egypt to give you the land of Canaan and to be your God. ‘And if your fellow countryman becomes so poor [in his dealings] with you that he sells himself to you [as payment for a debt], you shall not let him do the work of a slave [who is ineligible for redemption], but he is to be with you as a hired man, as if he were a temporary resident; he shall serve with you until the Year of Jubilee, and then he shall leave you, he and his children with him, and shall go back to his own family and return to the property of his fathers. For the Israelites are My servants whom I brought out of the land of Egypt; they shall not be sold in a slave sale. [1 Cor 7:23] You shall not rule over him with harshness (severity, oppression), but you are to fear your God [with profound reverence]. [Eph 6:9; Col 4:1] As for your male and female slaves whom you may have—you may acquire male and female slaves from the pagan nations that are around you. Moreover, from the children of the strangers who live as aliens among you, from them you may buy slaves and from their families who are with you, whom they have produced in your land; they may become your possession. You may even bequeath them as an inheritance to your children after you, to receive as a possession; you can use them as permanent slaves. But in respect to your fellow countrymen, the children of Israel, you shall not rule over one another with harshness (severity, oppression).