And when you shall see Jerusalem surrounded with armies, then know that its desolation is near.
All Commentaries on Luke 21:20 Go To Luke 21
Eusebius of Caesarea
AD 339
By the desolation of Jerusalem, He means that it was never again tobe set up, or its legal rites to be reestablished, so that no one should expect, after the coming siege and desolation, any restoration to take place, as there was in the time of the Persian king, Antiochus the Great, and Pompey.
Now our Lord, foreseeing that there would be afamine in the city, warned His disciples in the siege that was coming, not to betake themselves to the city as a place of refuge, and under God's protection, but rather to depart from thence, and flee to the mountains.
Forso in truth it was, that when the Romans came and were taking the city, many multitudes of the Jewish people perished in the mouth of the sword; as it follows, And they shall fall by the edge of the sword. But still more were cut off by famine. And these things happened at first indeed under Titus and Vespasian, but after them in the time of Hadrian the Roman general, when the land of their birth was forbidden to the Jews Hence it follows, And they shall be led away captive into all nations. For the Jews filled the whole land, reaching even to the ends of the earth, and when their land was inhabited by strangers, they alone could not enter it; as it follows, And Jerusalem shall be trodden down of the Gentiles, until the times of the Gentiles be fulfilled.