Bible Verses About Circumcision: First performed on Abraham and his family

Abraham was ninety and nine years old, when he circumcised the flesh of his foreskin.

And Ismael his son was full thirteen years old at the time of his circumcision.

The self-same day was Abraham circumcised and Ismael his son.

And all the men of his house, as well they that were born in his house, as the bought servants and strangers, were circumcised with him.