The LORD will go out and fight against those nations as when he fights on a day of battle.
On that day he will stand upon the Mount of Olives, to the east of Jerusalem. The Mount of Olives will be split in half by a very large valley running from east to west. Half of the mountain will move north, and the other half will move south.
You will flee through the valley of my mountain, because the valley of the mountains will reach to Azal. You will flee just as you fled from the earthquake in the days of Judah's King Uzziah. The LORD my God will come, and all the holy ones with him.
References for Zechariah 14:5
On that day, there will be no light. Splendid things will disappear.
References for Zechariah 14:6
On one day known to the LORD, there will be neither day nor night, but at evening time there will be light.
On that day, running water will flow out from Jerusalem, half of it to the Dead Sea and half of it to the Mediterranean; this will happen during the summer and the fall.
References for Zechariah 14:8