Romans 11:23-29

23And they also, if they continue not in their unbelief, shall be grafted in: for God is able to graft them in again.

24For if thou wast cut out of that which is by nature a wild olive tree, and wast grafted contrary to nature into a good olive tree: how much more shall these, which are the natural branches, be grafted into their own olive tree?

25For I would not, brethren, have you ignorant of this mystery, lest ye be wise in your own conceits, that a hardening in part hath befallen Israel, until the fulness of the Gentiles be come in;

26and so all Israel shall be saved: even as it is written, There shall come out of Zion the Deliverer; He shall turn away ungodliness from Jacob:

27And this is my covenant unto them, When I shall take away their sins.

28As touching the gospel, they are enemies for your sake: but as touching the election, they are beloved for the fathers’ sake.

29For the gifts and the calling of God are without repentance.