Genesis 17:23-27

23Then Abraham took Ishmael his son, and all the servants who were 1born in his house and all who were bought with his money, every male among the men of Abraham’s household, and circumcised the flesh of their foreskin in the very same day, 2as God had said to him.

24Now Abraham was ninety-nine years old when 3he was circumcised in the flesh of his foreskin.

25And 4Ishmael his son was thirteen years old when he was circumcised in the flesh of his foreskin.

26In the very same day Abraham was circumcised, and Ishmael his son.

27All the men of his household, who were 5born in the house or bought with money from a foreigner, were circumcised with him.