Zechariah 14:3-9

Then the LORD will go forth and fight against those nations, as when He fights on a day of battle. In that day His feet shall stand on the Mount of Olives, which lies before Jerusalem on the east; and the Mount of Olives will be split in half from the east to the west by a very large valley, and half of the mountain will move toward the north and half of it toward the south. [Is 64:1, 2] You will flee by the valley of My mountains, for the valley of the mountains will reach to Azel; and you will flee just as you fled from the earthquake in the days of Uzziah king of Judah. Then the LORD my God will come, and all the holy ones (believers, angels) with Him. [Amos 1:1; Col 3:4; 1 Thess 4:14; Jude 14, 15] In that day there will be no light; the glorious ones (heavenly bodies) shall be darkened. But it will be a unique day which is known to the LORD—not day and not night, but at evening time there will be light. And in that day living waters will flow out from Jerusalem, half of them to the eastern sea (Dead Sea) and half of them to the western sea (the Mediterranean); it will be in summer as well as in winter. And the LORD shall be king over all the earth; in that day the LORD shall be the only one [worshiped], and His name the only one.