Romans 11:10

Let their eyes be darkened that they may not see, and bow down their back alway.

Romans 1:21

Because knowing God, they did not glorify him as God, neither were thankful, but became vain in their reasonings, and their foolish heart was darkened.

Romans 11:8

According as it is written, God hath given them a spirit of slumber, eyes that they should not see, and ears that they should not hear, unto this day.

Ephesians 4:18

Having the understanding darkened, being alienated from the life of God, by the ignorance that is in them, through the hardness of their hearts:

2 Peter 2:4

For if God spared not the angels that sinned, but cast them down to hell, delivered them to chains of darkness,

2 Peter 2:17

These are wells without water, clouds driven by a tempest, to whom the blackness of darkness is reserved for ever.

Jude 1:6

And the angels, who kept not their first dignity, but left their own habitation, he hath reserved in everlasting chains under darkness to the judgment of the great day.

Jude 1:13

Raging waves of the sea, foaming out their own shame; wandering stars, for whom is reserved the blackness of darkness for ever.

Treasury of Scripture Knowledge

Summary

Let their eyes be darkened, that they may not see, and bow down their back alway.

General references

Bible References

Their eyes

Romans 11:8
According as it is written, God hath given them a spirit of slumber, eyes that they should not see, and ears that they should not hear, unto this day.
Romans 1:21
Because knowing God, they did not glorify him as God, neither were thankful, but became vain in their reasonings, and their foolish heart was darkened.
Ephesians 4:18
Having the understanding darkened, being alienated from the life of God, by the ignorance that is in them, through the hardness of their hearts:
2 Peter 2:4
For if God spared not the angels that sinned, but cast them down to hell, delivered them to chains of darkness,
Jude 1:6
And the angels, who kept not their first dignity, but left their own habitation, he hath reserved in everlasting chains under darkness to the judgment of the great day.

General references

John 8:27
They understood not, that he spake to them of the Father.