Matthew 24:22

“And except those days should be shortened, etc.] That is, those days of tribulation which commenced at the siege of Jerusalem; and therefore cannot refer to the times before it, and the shortening of them by it, which were very dreadful and deplorable through the murders and robberies of the cut-throats and zealots; but to those after the siege began, which were very distressing to those that were within; and which, if they had not been shortened, or if the siege had been lengthened out further, there should no flesh be saved; not one Jew in the city of Jerusalem would have been saved; they must everyone have perished by famine, or pestilence, or sword, or by the intestine wars and murders…”

“Except those days should be shortened - If the calamities of the siege should be lengthened out. If famine and war should be suffered to rage. No flesh be saved - None of the nation would be preserved alive. All the inhabitants of Judea would perish. The war, famine, and pestilence would entirely destroy them. But for the elect’s sake - The “elect” here doubtless means “Christians.” See 1 Peter 1:2; Romans 1:7; Ephesians 1:4; 1 Thessalonians 1:4. The word “elect” means “to choose.” It is given to Christians because they are “chosen to salvation through sanctification of the Spirit and belief of the truth,” 1 Peter 1:2. It is probable that in Jerusalem and the adjacent parts of Judea there…”

“And unless those days were shortened - By the taking of Jerusalem sooner than could be expected: No flesh would be saved - The whole nation would be destroyed. But for the elect's sake - That is, for the sake of the Christians. Matthew 24:23”

“24:22 God’s chosen ones endure (24:13) and remain faithful (24:37–25:46; see Isa 65:8-9; Rom 11:7).”

“except: Mar 13:20 for: Isa 6:13, Isa 65:8, Isa 65:9; Zac 13:8, Zac 14:2; Rom 9:11, Rom 11:25-31; Ti2 2:10 Matthew 24:23”