27 And all the men of his house, those born in the house and those bought with money from a foreigner, were circumcised with him.
Genesis 17:27 Cross References - MLV
Genesis 18:19
19 For I have known him, to the end that he may command his children and his household after him, that they may keep the way of Jehovah, to do righteousness and justice, to the end that Jehovah may bring upon Abraham what he has spoken of him.