Genesis 24:37

²Abraham said to his servant, the elder of his house, who ruled over all that he had, “Please put your hand under my thigh. ³I will make you swear by the LORD, the God of heaven and the God of the earth, that you shall not take a wife for my son of the daughters of the Canaanites, among whom I live. ⁴But you shall go to my country, and to my relatives, and take a wife for my son Isaac.”

⁵The servant said to him, “What if the woman isn’t willing to follow me to this land? Must I bring your son again to the land you came from?”

⁶Abraham said to him, “Beware that you don’t bring my son there again. ⁷The LORD, the God of heaven—who took me from my father’s house, and from the land of my birth, who spoke to me, and who swore to me, saying, ‘I will give this land to your offspring—he will send his angel before you, and you shall take a wife for my son from there. ⁸If the woman isn’t willing to follow you, then you shall be clear from this oath to me. Only you shall not bring my son there again.”

⁹The servant put his hand under the thigh of Abraham his master, and swore to him concerning this matter.

¹Now when these things were done, the princes came near to me, saying, “The people of Israel, the priests, and the Levites have not separated themselves from the peoples of the lands, following their abominations, even those of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites. ²For they have taken of their daughters for themselves and for their sons, so that the holy offspring have mixed themselves with the peoples of the lands. Yes, the hand of the princes and rulers has been chief in this trespass.”

³When I heard this thing, I tore my garment and my robe, and pulled the hair out of my head and of my beard, and sat down confounded.

⁴⁶Rebekah said to Isaac, “I am weary of my life because of the daughters of Heth. If Jacob takes a wife of the daughters of Heth, such as these, of the daughters of the land, what good will my life do me?”

²God’s sons saw that men’s daughters were beautiful, and they took any that they wanted for themselves as wives.