Romans 11:31

so also these now did not believe, that in your kindness they also may find kindness;

Romans 10:16

But they were not all obedient to the good tidings, for Isaiah saith, 'Lord, who did give credence to our report?'

Romans 11:15

for if the casting away of them is a reconciliation of the world, what the reception -- if not life out of the dead?

Romans 11:25

For I do not wish you to be ignorant, brethren, of this secret -- that ye may not be wise in your own conceits -- that hardness in part to Israel hath happened till the fulness of the nations may come in;

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Believed

Romans 10:16
But they were not all obedient to the good tidings, for Isaiah saith, 'Lord, who did give credence to our report?'
Romans 11:15
for if the casting away of them is a reconciliation of the world, what the reception -- if not life out of the dead?

General references

Isaiah 55:9
For high have the heavens been above the earth, So high have been My ways above your ways, And My thoughts above your thoughts.
Micah 7:20
Thou givest truth to Jacob, kindness to Abraham, That thou hast sworn to our fathers, from the days of antiquity!