Romans 4:11-12
Afterward he received the mark of circumcision as God's seal of his right standing with Him on condition of faith which he had before he was circumcised, that he might be the forefather of all who have faith while still uncircumcised, that they might have their faith credited to them as right standing with God;
Matthew 22:32
'I am the God of Abraham and the God of Isaac and the God of Jacob!' Now God is not the God of dead but of living men."
Romans 11:25
For to keep you from being self-conceited, brothers, I do not want to have a misunderstanding of this uncovered secret, that only temporary insensibility has come upon Israel until the full quota of the heathen peoples comes in,
Galatians 3:29
And if you belong to Christ, then you are real descendants of Abraham, and heirs in accordance with the promise made to him.