Genesis 24:36-38

And Sarah my master's wife bare a son to my master when she was old: and unto him hath he given all that he hath. And my master made me swear, saying, Thou shalt not take a wife to my son of the daughters of the Canaanites, in whose land I dwell: but thou shalt go unto my father's house, and to my kindred, and take a wife unto my son.