He was circumcised as a sign of the covenant God had made with him. It showed that his faith had made him right with God before he was circumcised. So Abraham is the father of all believers who have not been circumcised. God accepts their faith. So their faith makes them right with him.
Is that blessing only for those who are circumcised? Or is it also for those who are not circumcised? We have been saying that God accepted Abraham’s faith. So his faith made him right with God.
Circumcision and uncircumcision aren’t worth anything to those who believe in Christ Jesus. The only thing that really counts is faith that shows itself through love.