Romans 4:11-12
Not after, but before. And it was as a sign of this that he received the rite of circumcision-to attest the righteousness due to the faith of an uncircumcised man-in order that he might be the father of all who have faith in God even when uncircumcised, that they also may be regarded by God as righteous;
Matthew 22:32
'I am the God of Abraham, and the God of Isaac, and the God of Jacob'? He is not the God of dead men, but of living."
Romans 11:25
Brothers, for fear that you should think too highly of yourselves, I want you to recognize the truth, hitherto hidden, that the callousness which has come over Israel is only partial, and will continue only till the whole Gentile world has been gathered in.
Galatians 3:29
And, since you belong to Christ, it follows that you are Abraham's offspring and, under the promise, sharers in the inheritance.