John Mark
Mark 13:19BSB·traditional attribution

For those will be days of tribulation unseen from the beginning of God’s creation until now, and never to be seen again.

Matthew Henry Presbyterian @wholebiblehenry

The Jews, in rebelling against the Romans, and in persecuting the Christians, were hastening to their own ruin apace, both efficiently and meritoriously, were setting both God and man against them; see Th1 2:15. Now here we have a prediction of that ruin which came upon them within less than forty years after this: we had it before, Mat 24:15, etc. Observe, I. What is here foretold concerning it. 1.

Commenting on Mark 13:14-23

John Gill Reformed Baptist @doctorgill

And then if any man shall say to you,.... During those days of tribulation and affliction, or when shortened and at an end: lo! here is Christ, or lo! he is there; the Messiah has appeared in such or in such a place, to deliver you from your national distresses and calamities, and from the Roman yoke and bondage: believe him not; give no credit...

William Burkitt Anglican @expositoryburkitt

The dreadful calamities which were coming upon the Jews in general, and Jerusalem in particular, are here foretold by our blessed Saviour, partly from the Roman army without, and partly from the seditions and factions of the zealots within; who committed such outrages and slaughters, that there were no less than an hundred thousand Jews that bought our Saviour for thirty-pence, were now themselves sold thirty for a penny.