That very day Abraham and his son Ishmael were circumcised.
I hasten and do not delay to keep your commandments.
So Abram went, as the LORD had told him, and Lot went with him. Abram was seventy-five years old when he departed from Haran.
And Ishmael his son was thirteen years old when he was circumcised in the flesh of his foreskin.
And all the men of his house, those born in the house and those bought with money from a foreigner, were circumcised with him.