Matthew Henry on Luke 21:20-28
Having given them an idea of the times for about thirty-eight years next ensuing, he here comes to show them what all those things would issue in at last, namely, the destruction of Jerusalem, and the utter dispersion of the Jewish nation, which would be a little day of judgment, a type and figure of Christ's second coming, which was not so fully spoken of here as in the parallel place (Mt. 24), yet glanced at; for the destruction of Jerusalem would be as it were the destruction of the world to those whose hearts were bound up in it.
I. He tells them that they should see Jerusalem besieged, compassed with armies (Luk 21:20), the Roman armies; and, when they saw this, they might conclude that…
Read the whole note in the consoleJamieson-Fausset-Brown on Luke 21:20
by armies--encamped armies, that is, besieged: "the abomination of desolation" (meaning the Roman ensigns, as the symbols of an idolatrous, pagan, unclean power) "spoken of by Daniel the prophet" (Dan 9:27) "standing where it ought not" (Mar 13:14). "Whoso readeth [that prophecy] let him understand" (Mat 24:15).
Then . . . flee, &c.--EUSEBIUS says the Christians fled to Pella, at the north extremity of Perea, being "prophetically directed"; perhaps by some prophetic intimation still more explicit than this, which still would be their chart.
Adam Clarke on Luke 21:19
In your patience - Rather, your perseverance, your faithful continuance in my word and doctrine. Ye will preserve your souls. Ye shall escape the Roman sword, and not one of you shall perish in the destruction of Jerusalem. Instead of κτησασθε, possess, or preserve ye, I read κτησεσθε, ye shall preserve. This reading is supported by AB-B, five others; both the Syriac, all the Arabic, Ethiopic, Vulgate, all the Itala except two, Origen, Macarius, and Tertullian.
John Gill on Luke 21:20
And when ye shall see Jerusalem compassed with armies,.... The Vulgate Latin, Syriac, and Persic versions read, "with an army"; that is, with the Roman army, as it was by the army which Titus Vespasian brought against it, and besieged it with:
then know that the desolation thereof is nigh; signifying, that there would be no deliverance to be expected, as when the Assyrian army under Rabshakeh appeared against it; but that whenever the Roman army besieged it, its destruction might be looked upon as inevitable; nor was the siege raised until it was destroyed, which was about four years after.
