By the tribulation, He means the times of Antichrist and the false Prophets; for when there are so many deceivers, the tribulation will be great. But it shall not extend through any great length of time. For if for the elect’s sake the Jewish war is shortened, much more shall this tribulation be shortened for their sakes; for which reason He said not “After,” but “Immediately after,” for He shall come immediately after.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).