After God destroyed Sodom, Lot did not want to flee Sodom according to God’s plan. He wanted what he wanted regardless of what God wanted for him. This is further evidence that the sins of Sodom had entrenched themselves into Lot and his family. The Bible clearly teaches that our sins will be passed down to our children. They will not just embrace them they will exceed us (I Kings 14: 22; II Kings 15: 9; Nehemiah 9: 2; Daniel 9: 16 etc.). This passage of scripture is a fine example of that truth. We see here Lot being easily persuaded into extreme drunkenness so that he is unaware of the incest his two daughters plot against him. His daughters had the same weak character Lot had. They had the natural desire for children but were unaware of God’s provision and chose an immoral path to parenthood.
They had the experience of living in Sodom and those abominable practices continued to live within them. They used the weak excuse that nobody would want them because they were undesirable as they came out of Sodom. Further they thought they had to quickly get their father to commit incest with them, as the term of his life might not be much longer.