New King James Version

Genesis 17:24-27 New King James Version (NKJV)

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

25. And Ishmael his son was thirteen years old when he was circumcised in the flesh of his foreskin.

26. That very same day Abraham was circumcised, and his son Ishmael;

27. and all the men of his house, born in the house or bought with money from a foreigner, were circumcised with him.