Romans 11:31

so, also, these have not now believed, that through the mercy shown to you, they also may obtain mercy.

Romans 10:16

But they have not all obeyed the gospel; for Isaiah says: Lord, who has believed our report?

Romans 11:15

For, if the casting away of them be the reconciling of the world, what shall the reception of them be, but life from the dead?

Romans 11:25

For I do not wish you, brethren, to be ignorant of this mystery lest you be wise in your own conceit that blindness has happened to Israel in part, till the full number of the Gen tiles shall have come in.

Treasury of Scripture Knowledge

Summary

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

Bible References

Believed

Romans 10:16
But they have not all obeyed the gospel; for Isaiah says: Lord, who has believed our report?
Romans 11:15
For, if the casting away of them be the reconciling of the world, what shall the reception of them be, but life from the dead?