is.

Zephaniah 1:18
Neither their silver nor their gold will be able to deliver them on the Day of the LORD's wrath. The whole earth will be consumed by the fire of His jealousy." For indeed, He will make a sudden end of all the inhabitants of the earth.

Zephaniah 2:2
before the decree takes effect and the day passes like chaff, before the burning anger of the LORD comes upon you, before the Day of the LORD's anger comes upon you.

Isaiah 22:5
For the Lord GOD of Hosts has set a day of tumult and trampling and confusion in the Valley of Vision--of breaking down the walls and crying to the mountains.

Jeremiah 30:7
How awful that day will be! None will be like it! It is the time of Jacob's distress, but he will be delivered out of it.

Amos 5:18-20
Woe to you who long for the Day of the LORD! What will the Day of the LORD be for you? It will be darkness and not light. . . .

Luke 21:22, 23
For these are the days of vengeance, to fulfill all that is written. . . .

Romans 2:5
But because of your hard and unrepentant heart, you are storing up wrath against yourself for the day of wrath, when God's righteous judgment will be revealed.

2 Peter 3:7
And by that same word, the present heavens and earth are reserved for fire, kept for the day of judgment and destruction of ungodly men.

Revelation 6:17
For the great day of Their wrath has come, and who is able to withstand it?"

a day of darkness.

Job 3:4-8
If only that day had turned to darkness! May God above disregard it; may no light shine upon it. . . .

Joel 2:2, 11
a day of darkness and gloom, a day of clouds and blackness. Like the dawn overspreading the mountains a great and strong people appears, such as never was of old, nor will ever be in ages to come. . . .