Revelation 18:8

therefore, in one day shall her plagues come-death, and mourning, and famine; and she shall be burnt with fire; for strong is the Lord God who judges her.

Revelation 6:17

for the great day of his wrath is come, and who shall be able to stand?

Treasury of Scripture Knowledge

Summary

And the LORD shall utter his voice before his army: for his camp is very great: for he is strong that executeth his word: for the day of the LORD is great and very terrible; and who can abide it?

Bible References

He is

Revelation 18:8
therefore, in one day shall her plagues come-death, and mourning, and famine; and she shall be burnt with fire; for strong is the Lord God who judges her.

Who

Revelation 6:17
for the great day of his wrath is come, and who shall be able to stand?