Genesis 17:24

24 Abraham was ninety-nine years old when he was circumcised in the flesh of his foreskin.

Genesis 17:24 In-Context

22 And when he had finished talking with him, God went up from Abraham.
23 Then Abraham took his son Ishmael and all the slaves born in his house or bought with his money, every male among the men of Abraham's house, and he circumcised the flesh of their foreskins that very day, as God had said to him.
24 Abraham was ninety-nine years old when he was circumcised in the flesh of his foreskin.
25 And his son Ishmael was thirteen years old when he was circumcised in the flesh of his foreskin.
26 That very day Abraham and his son Ishmael were circumcised;
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.