Genesis 24:2-3

CLV(i) 2 And saying is Abraham to his servant, the oldest of his household, the ruler over all that is his, "Pray place your hand under my thigh, 3 and adjure you will I by Yahweh, the Elohim of the heavens and the Elohim of the earth, that you will not take a wife for my son Isaac from the daughters of the Canaanite near whom I am dwelling,