Mark 13:16 - Exposition

And let him that is in the 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."