Romans 4:6

4:6 So even David himself speaks regarding the blessedness of the man to whom God credits righteousness apart from works:

Romans 4:11

4:11 And he received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised, so that he would become the father of all those who believe but have never been circumcised, that they too could have righteousness credited to them.

Romans 4:22

4:22 So indeed it was credited to Abraham as righteousness.