From Genesis 19
In 19:17, Lot was told to escape to the mountains and not look back. What was his response? "Oh no, I can't lest the disaster overtake me and I die". What does that mean? I speculate here that Lot had a lifestyle of leisure and riches that made him fat and unable to climb the mountain. I believe that he feared the exertion would kill him. The angels obviously believed him and therefore allowed him to flee to Zoar, a short distance in the same valley. It was morning, when they arrived, the sun had risen (v.23). It was so close that his wife was able to turn and see the destruction after she arrived in Zoar.
In verse 26, we see that Lot's wife did not heed his warning and turned. Lot had no authority in his voice or home. His sons-in-law thought he was joking and his wife failed to listen. The result was their destruction. What is it that we do, as men, that causes others to think we are joking and our family not listen to us?
In verse 30, Lot leaves Zoar and makes his way up to the mountain where he was originally told to go, "because he was afraid to stay in Zoar". What was his fear? It is possible that he remembered the angel's warning to flee to the mountains because Zoar was under the same curse as Sodom and Gomorrah.
Tomorrow, Lot's daughters bear children