Verse 16. - And let him that is inthe field not return back to take his cloke (τὸ ἱμάτιον αὐτοῦ ). This was the outer garment or pallium. They who worked in the field were accustomed to leave their cloak and their tunic at home; so that, half-stripped, they might be more free to labor. Therefore our Lord warns them that in this impending destruction, so suddenly would it come, they must be ready to fly just as they were. It was the direction given to Lot, "Escape for thy life; look not behind thee."
13:14-23 The Jews in rebelling against the Romans, and in persecuting the Christians, hastened their own ruin apace. Here we have a prediction of that ruin which came upon them within less than forty years after this. Such destruction and desolation, that the like cannot be found in any history. Promises of power to persevere, and cautions against falling away, well agree with each other. But the more we consider these things, the more we shall see abundant cause to flee without delay for refuge to Christ, and to renounce every earthly object, for the salvation of our souls.
not turn back again: either to his own house, or rather to that part of the field where he laid down his clothes:
for to take up his garment; but let him flee without it, or otherwise he would be in great danger; See Gill on Matthew 24:18.