Thus both the daughters of Lot became pregnant by their father.
Here is, I. The great trouble and distress that Lot was brought into after his deliverance, Gen 19:30. 1. He was frightened out of Zoar, durst not dwell there; probably because he was conscious to himself that it was a refuge of his own choosing and that herein he had foolishly prescribed to God, and therefore he could not but distrust his safety in it...
Commenting on Genesis 19:30-38
And the younger, she also bare a son, and called his name Benammi,.... That is, "the son of my people", being the son of her father; which though it does not so manifestly appear in this name, as in the other, yet there is some trace of it; and she would have it be known by this, that he was not the son of a...
Thus were both the daughters of Lot with child by their father. (r) Thus God permitted him to fall most horribly in the solitary mountains, whom the wickedness of Sodom could not overcome.