Romans 11:23-31

23 And if they do not persist in unbelief, they will be grafted in, for God is able to graft them in again.

24 After all, if you were cut out of an olive tree that is wild by nature, and contrary to nature were grafted into a cultivated olive tree, how much more readily will these, the natural branches, be grafted into their own olive tree!

25 All Israel Will Be Saved
I do not want you to be ignorant of this mystery, brothers, so that you may not be conceited: Israel has experienced a hardening in part until the full number of the Gentiles has come in.

26 And so all Israel will be saved, as it is written:
“The deliverer will come from Zion;
he will turn godlessness away from Jacob.

27 And this is my covenant with them
when I take away their sins.”

28 As far as the gospel is concerned, they are enemies on your account; but as far as election is concerned, they are loved on account of the patriarchs,

29 for God’s gifts and his call are irrevocable.

30 Just as you who were at one time disobedient to God have now received mercy as a result of their disobedience,

31 so they too have now become disobedient in order that they too may now receive mercy as a result of God’s mercy to you.