Abraham

 Romans 9.7:Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.

  Genesis 17:23   And Abraham took Ishmael his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham's house; and circumcised the flesh of their foreskin in the selfsame day, as God had said unto him.


gen 17.13 

gen 17.23
Gen 17:26   In the selfsame day was Abraham circumcised, and Ishmael his son.

gen 17.27