Genesis 17:27

27 And every male in Abraham's house was circumcised along with him. That included those who were born in his house or bought from a stranger.

Genesis 17:27 Meaning and Commentary

Genesis 17:27

And all the men of his house
All the males, whether children or adult:

born in the house, or bought with money of the stranger, were
circumcised with him;
by their will, and with their consent; not forced to it, as Aben Ezra rightly observes; and these being before trained up by him in religious exercises, were more easily prevailed upon by him to follow his example; this also is repeated, that it might be served, and be an example to follow in after generations.

Genesis 17:27 In-Context

25 His son Ishmael was 13.

26 Abraham and his son Ishmael were both circumcised on that same day.

27 And every male in Abraham's house was circumcised along with him. That included those who were born in his house or bought from a stranger.