And it came to pass, when they had brought them (i.e. Lot and his family) forth abroad (literally, without; sc. the city), that he—one of the angels (Rabbi Solomon, Jarchi, Rosenmüller, Lange, 'Speaker's Commentary'); the one that had taken Lot's hand (Inglis); Jehovah speaking through the angel (Delitzsch); the angel speaking in the name of God (Keil, Kalisch); Jehovah himself, who, though not mentioned, had now appeared upon the scene (Ainsworth, Candlish)—said, Escape for thy life (literally, for thy soul; and clearly in this case the loss of the soul in the higher sense must have been involved in the destruction of the life); look not behind thee.
From the event it may be inferred that this injunction was also given to Lot's wife and daughters; perhaps to hide God's working in the fiery judgment from mortal vision (Knobel), but more likely to express detestation of the abhorred city (Bush), to guard against the incipience of any desire to return (Lange), and to stimulate their zeal to escape destruction.
Neither stay thou in all the plain—or "circle" (vide Genesis 13:10). Once so attractive for its beauty, it must now be abandoned for its danger. Escape to the mountain (the mountain of Moab, on the east of the Dead Sea), lest thou be consumed.