Deuteronomy 15:16-17

LEB(i) 16 And then if it will happen that he says to you, 'I do not want to go out* from you,' because he loves you and your family, because it is good for him to be with you; 17 then you shall take an awl, and you shall thrust it through his earlobe and into the door, and he shall be to you a slave forever;* and you shall also do likewise for your slave woman.