Genesis 24:37-41

37My master put me under this oath: ‘You will not take a wife for my son from the daughters of the Canaanites in whose land I live

38but will go to my father’s family and to my clan to take a wife for my son.’

39But I said to my master, ‘Suppose the woman will not come back with me?’

40He said to me, ‘The Lord before whom I have walked will send his angel with you and make your journey a success, and you will take a wife for my son from my clan and from my father’s family.

41Then you will be free from my oath if you go to my family and they do not give her to you — you will be free from my oath.’