Revelation 6:12

And I saw, when he opened the sixth seal, and there was an earthquake; and the sun became black as sackcloth of hair; and the moon became as blood;

Revelation 16:10-11

And the fifth poured forth his vial upon the throne of the beast; and his kingdom was darkened, and they gnawed their tongues for

Treasury of Scripture Knowledge

Summary

And in that day they shall roar against them like the roaring of the sea: and if one look unto the land, behold darkness and sorrow, and the light is darkened in the heavens thereof.

Bible References

If one look

Revelation 6:12
And I saw, when he opened the sixth seal, and there was an earthquake; and the sun became black as sackcloth of hair; and the moon became as blood;
Revelation 16:10
And the fifth poured forth his vial upon the throne of the beast; and his kingdom was darkened, and they gnawed their tongues for