Romans 11:29-33

For the gifts and calling of God are without repentance.

For as ye in times past have not believed God, yet have now obtained mercy through their unbelief:

Even so have these also now not believed, that through your mercy they also may obtain mercy.

For God hath concluded them all in unbelief, that he might have mercy upon all.

O the depth of the riches both of the wisdom and knowledge of God! how unsearchable are his judgments, and his ways past finding out!