Zechariah 14:5

(Verse 5) And the middle of the mountain will be separated to the north, and its middle to the south. And you will flee to the valley of my mountains, for the valley of the mountains will reach to the next, and you will flee as you fled from the earthquake in the days of King Oshea of Judah, and the Lord my God will come, and all the holy ones with him. LXX: And the middle part of the mountain will incline to the north, and its middle part to the south. And the valley of my mountains will be closed off, and the valley of the mountains will reach Asael. And it will be filled as it was filled from the face of the earthquake in the days of King Oshea of Judah, and the Lord my God will come, and all the holy ones with him. Therefore, as we have said, you will flee, which the seventy and the other interpreters have translated as 'will be blocked' or 'will be filled'. And as we have stated, because the valley of the mountains will be joined up to the next one; for the next one, the seventy translators have rendered it as Asael. Aquila put the Hebrew word Asel, using the letter 'e' instead of 'i'. Theodotion used the extended form, Azel. Only Symmachus translated it as 'the next one', whom we have also followed. Let us say in a paraphrastic manner how the things that are written can come to pass: When the mountain of Olivet has been broken by a large chasm, so that one part of the chasm looks towards the East and the other towards the West, suddenly, in the very chasm itself, high cliffs on both sides will break away, and another chasm will be formed towards the North and another towards the South, and a square cliff will be made, so that the chasm stretches in four directions, towards the East and the West, the North and the South. And you will flee, he says, to the valley that is between the temple and Zion. […]

Christ, then, was crucified for us; he was judged in the night, when it was cold, and therefore a fire of coal was laid. He was crucified in the third hour, and "from the sixth hour there was darkness until the ninth hour," but from the ninth hour there was light again. Are these details written down? Let us inquire. Zechariah says, "And it shall come to pass in that day, and there shall be no light but cold and frost through one day (the cold on account of which Peter warmed himself), and that day shall be known to the Lord." (What? Did he not know the other days? There are many days, but "this is the day [of the Lord's patience] the Lord has made.")6 "And that day shall be known to the Lord, and not day nor night." What dark saying does the prophet utter? That day is neither day nor night. What then shall we call it? The gospel interprets it, telling of the event. It was not day, for the sun did not shine without interruption from rising to setting, but from the sixth hour to the ninth there was darkness. The darkness was interposed, but God called the darkness night. Therefore it was neither all light, so as to be called day, nor all darkness, so as to be called night; but after the ninth hour the sun shone forth. This also the prophet foretells; for after saying "not day nor night," he adds, "And in the time of the evening there shall be light." Do you see the truth of the events foretold?

The valley of the mountains - A place provided of God for their safety. O Lord my God - As if it were said, though it will, O Lord, put us into fear; yet without such wonderful works we shall not see thy salvation; therefore, O Lord my God come, and bring thy holy ones with thee.

And ye shall flee to the valley of the mountains,....

Who art thou, O great mountain? And a great mountain the ceremonial law was in the way of the Jews' conversion, which, one would think, could never have been got over; yet before Christ and his gospel it was made plain.