Genesis 19:30

He feared to dwell in Zoar — Here is the great trouble and distress that Lot was brought into after his deliverance, Genesis 19:29. He was frightened out of Zoar, durst not dwell there, either because he was conscious to himself that it was a refuge of his own chusing, and that therein he had foolishly prescribed to God, and therefore could not but distrust his safety in it. Probably he found it as wicked as Sodom; and therefore concluded it could not long survive it; or perhaps he observed the rise and increase of those waters, which, after the conflagration, began to overflow the plain, and which, mixing with the ruins, by degrees made the dead sea; in those waters he concluded Zoar must needs perish, (though it had escaped the fire) because it stood upon the same flat. He was now glad to go to the mountain, the place which God had appointed for his shelter. See in Lot what those bring themselves to at last, that forsake the communion of saints for secular advantages.