I thought you would be interested in this, not many discuss this, but it will just reaffirm your faith that God shelters his people in the midst of the storm.
Christians fled Jerusalem before it's destruction of 70 AD.
Vespasian advanced into Galilee, a region north of Jerusalem. He conquered its major cities and subdued the land of that area. After his Galilean campaign in the north, he marched south and encamped around Jerusalem. But when word came of Nero's death back in Rome, Vespasian delayed his plan for taking Jerusalem, withdrew his troops, and returned to Rome to become emperor. Once again, the Jews had prevailed and the church was given additional time to leave the city, if they had not already left. The work of destroying Jerusalem was left to Titus, the son of Vespasian, who did so in AD 70 (See Learning Activity #44 on this web site).
The church was to flee Jerusalem when they saw the signs of the parousia (presence) of Christ and the coming destruction, and flee they did! The following historical account verifies this action.
"The city [Pella] earned its name in church history in AD 66 when Pella became a refuge for Christians who were fleeing Jerusalem because the Roman army was coming to quiet a Jewish revolution. Pella continued as a strong Christian city after that and hosted many monasteries throughout the prosperous Byzantine period." The Zondervan Pictorial Encyclopedia of the Bible, Volume Four, Page 672.
Eusebius, one of the early church fathers wrote: "The whole body, however, of the church of Jerusalem, having been commanded by a divine revelation, given to men of approved piety there before the war, removed from the city, and dwelt at a certain town beyond the Jordan, called Pella. Here those that believed in Christ, having removed from Jerusalem, as if holy men had entirely abandoned the royal city itself, and the whole land of Judea; the divine justice, for their crimes against Christ and His apostles finally overtook them, totally destroying the whole generation of these evildoers from the earth." Ecclesiastical History, 3:5:3.
Josephus also verifies the Christian departure from Jerusalem when he wrote, "After this calamity [referring to the retreat of Cestius Gallus from Jerusalem after the first Roman attack–See Learning Activity #32), had befallen Cestius, many of the most eminent of the Jews swam [left, departed] away from the city, as from a ship when it was going to sink." Josephus, The Wars of the Jews, Book 2, Chapter 20, Paragraph 1, Line 556.
Thomas Newton (1754) writing in his work entitled, The Prophecy of Matthew 24, Dissertation XIX, states, "...all who believed in Christ left Jerusalem, and removed to Pella, and other places beyond the river Jordan: so that they all marvellously escaped the general shipwreck of their country, and we do not read any where that so much as one of them perished in the destruction of Jerusalem. Of such signal service was this caution of our Saviour to the believers."
Pella was at that time a city in the Decapolis. In modern times it is known as Tabaqat Fahil. It is located in the foothills of the eastern slope of the Jordan Valley about 100 km to the northwest of Amman and about eighteen miles south of the Sea of Galilee. Pella flourished until the late Byzantine period when a decrease in the water supply, an invasion by the Persians, and an epidemic of bubonic plague resulted in a reversal of its growth. A devastating earthquake in CE 747 ended its long history as a city of major influence in the region.
It is clear from the Scriptures that Jesus had adequately taught on the subject of the signs that would precede the coming judgment and destruction of Jerusalem along with His "coming, presence," and that this teaching had been spread to the Christian community so that they were well informed and watchful for these events. When the events began to unfold the Christians took note, left Jerusalem, thereby escaping the destruction that followed during the Roman siege and leveling of that great city, Jerusalem. As the city was being destroyed the Christians were safe and sound in the distant city of Pella!