Genesis 24:9
King James Version
“And the servant put his hand under the thigh of Abraham his master, and sware to him concerning that matter.”
Context
6And Abraham said unto him, Beware thou that thou bring not my son thither again.
7The LORD God of heaven, which took me from my father’s house, and from the land of my kindred, and which spake unto me, and that sware unto me, saying, Unto thy seed will I give this land; he shall send his angel before thee, and thou shalt take a wife unto my son from thence.
8And if the woman will not be willing to follow thee, then thou shalt be clear from this my oath: only bring not my son thither again.
9And the servant put his hand under the thigh of Abraham his master, and sware to him concerning that matter.
10And the servant took ten camels of the camels of his master, and departed; for all the goods of his master in his hand: and he arose, and went to Mesopotamia, unto the city of Nahor.
11And he made his camels to kneel down without the city by a well of water at the time of the evening, the time that women go out to draw
12And he said, O LORD God of my master Abraham, I pray thee, send me good speed this day, and shew kindness unto my master Abraham.