What does the Old Testament say about the Final Judgment?

In the Old Testament we find the following words about the Final Judgment:

“‘I will utterly consume everything from the face of the land,’ says the LORD; ‘I will consume man and beast; I will consume the birds of the heavens, the fish of the sea, and the stumbling blocks along with the wicked. I will cut off man from the face of the land,’ says the LORD” (Zeph. 1:2–3).

“‘It shall be in that day,’ says the LORD of hosts, ‘that I will cut off the names of the idols from the land, and they shall no longer be remembered. I will also cause the prophets and the unclean spirit to depart from the land’” (Zech. 13:2).

“I watched till thrones were put in place, and the Ancient of Days was seated; His garment was white as snow, and the hair of His head was like pure wool. His throne was a fiery flame, its wheels a burning fire; a fiery stream issued. The court was seated, and the books were opened …” (Dan. 7:9–10).

“Wail, for the day of the Lord is at hand! It will come as destruction from the Almighty. Therefore, all hands will be limp, every man’s heart will melt, and they will be afraid. Pangs and sorrows will take hold of them; they will be in pain as a woman in childbirth; they will be amazed at one another; their faces will be like flames. Behold, the day of the Lord comes, cruel, with both wrath and fierce anger, to lay the land desolate; and He will destroy its sinners from it. For the stars of heaven and their constellations will not give their light; the sun will be darkened in its going forth, and the moon will not cause its light to shine. I will punish the world for its evil, and the wicked for their iniquity; I will halt the arrogance of the proud, and will lay low the haughtiness of the terrible … Therefore, I will shake the heavens, and the earth will move out of her place, in the wrath of the Lord of hosts and in the day of His fierce anger” (Isa. 13:6–13).