Zechariah 14:4-8

4On that day his feet will stand on the Mount of Olives, which faces Jerusalem on the east. The Mount of Olives will be split in half from east to west, forming a huge valley, so that half the mountain will move to the north and half to the south.

5You will flee by my mountain valley, for the valley of the mountains will extend to Azal. You will flee as you fled from the earthquake in the days of King Uzziah of Judah. Then the Lord my God will come and all the holy ones with him.

6On that day there will be no light; the sunlight and moonlight will diminish.

7It will be a unique day known only to the Lord, without day or night, but there will be light at evening.

8On that day living water will flow out from Jerusalem, half of it toward the eastern sea and the other half toward the western sea, in summer and winter alike.