Genesis 24:3-5

Amplified Bible

³ and I will make you swear by the Lord, the God of heaven and the God of earth, that you will not take a wife for my son from the daughters of the Canaanites, among whom I live, ⁴ but you will [instead] go to my [former] country (Mesopotamia) and to my relatives, and take a wife for my son Isaac [the heir of the covenant promise].” ⁵ The servant said to him, “Suppose the woman will not be willing to follow me back to this country; should I take your son back to the country from which you came?”