Mindful of the proverb, "Even if the wheat of thine own place be darnel, use it for seed," Abraham determined to take a wife for Isaac from his own family. He argued that as any wife he chose would have to become a proselyte, it would be best to use his own stock, which had the first claim upon him.
Eliezer now said to his master: "Peradventure no woman will be willing to follow me unto this land. May I then marry my own daughter to Isaac?" "No," replied Abraham, "thou art of the accursed race, and my son is of the blessed race, and curse and blessing cannot be united. But beware thou that thou bring not my son again unto the land from whence I came, for if thou broughtest him thither again, it were as though thou tookest him to hell. God who sets the heavens in motion, He will set this matter right, too, and He that took me from my father's house, and that spake unto me, and that swore unto me in Haran, and at the covenant of the pieces, that He would give this land unto my seed, He shall send His excellent angel before thee, and thou shalt take a wife for my son from thence." Eliezer then swore to his master concerning the matter, and Abraham made him take the oath by the sign of the covenant.