Hebrews 10:27

but a certain terrible expectation of judgment, and a burning indignation, ready to devour these enemies.

Hebrews 10:31

It is a fearful thing to fall into the hands of the living God.

Revelation 6:15-17

and the kings of the earth, and the grandees, and the rich, and the military commanders, and the men in power, and every slave, and every free man, hid themselves in the caves, and in the rocks of the mountains;

Treasury of Scripture Knowledge

Summary

That they feared greatly, because Gibeon was a great city, as one of the royal cities, and because it was greater than Ai, and all the men thereof were mighty.

Bible References

They feared

Hebrews 10:27
but a certain terrible expectation of judgment, and a burning indignation, ready to devour these enemies.
Revelation 6:15
and the kings of the earth, and the grandees, and the rich, and the military commanders, and the men in power, and every slave, and every free man, hid themselves in the caves, and in the rocks of the mountains;