Genesis 24:3

24:3 so that I may make you solemnly promise by the Lord, the God of heaven and the God of the earth: You must not acquire a wife for my son from the daughters of the Canaanites, among whom I am living.

Genesis 24:37

24:37 My master made me swear an oath. He said, ‘You must not acquire a wife for my son from the daughters of the Canaanites, among whom I am living,