Genesis 24:1-2 Young's Literal Translation (YLT)
24 And Abraham [is] old, he hath entered into days, and Jehovah hath blessed Abraham in all [things];
2 and Abraham saith unto his servant, the eldest of his house, who is ruling over all that he hath, `Put, I pray thee, thy hand under my thigh,
Genesis 24:1-2 New International Version (NIV)
Isaac and Rebekah
24 Abraham was now very old, and the Lord had blessed him in every way. 2 He said to the senior servant in his household, the one in charge of all that he had, “Put your hand under my thigh.