Romans 1:18
For God's anger is being revealed from Heaven against all impiety and against the iniquity of men who through iniquity suppress the truth. God is angry:
Revelation 6:12-17
When the Lamb broke the sixth seal I looked, and there was a great earthquake, and the sun became as dark as sackcloth, and the whole disc of the moon became like blood.
Revelation 14:15-20
And another, an angel, came out of the sanctuary, calling in a loud voice to Him who sat on the cloud, and saying, "Use your sickle and reap the harvest, for the hour for reaping it has come: the harvest of the earth is over-ripe."
Revelation 19:15-21
From His mouth there comes a sharp sword with which He will smite the nations; and He will Himself be their Shepherd, ruling them with a scepter of iron; and it is His work to tread the winepress of the fierce anger of God, the Ruler of all.
Revelation 20:9
And they went up over the whole breadth of the earth and surrounded the encampment of God's people and the beloved city. But fire came down from Heaven and consumed them;
Revelation 20:15
And if any one's name was not found recorded in the Book of Life he was thrown into the Lake of fire.