Oath: Abraham Requires Oath of his Servant Eliezer

So Abraham instructed the chief servant of his household, who managed all he owned, “Place your hand under my thigh,

…and I will have 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 am dwelling,

So the servant placed his hand under the thigh of his master Abraham and swore an oath to him concerning this matter.