What does Genesis 19:12 mean?
The angels have subdued the violent and rapacious mob seeking to break Lot's door down. Now they turn to Lot and those safe inside the house for the moment. The question asked by the two angels reveals that a greater danger is coming. They ask Lot if there is anyone else in town beside his wife and two daughters that he would hope to get out of the place. They list possibilities: sons, daughters, sons-in-law, anyone at all.There may be two levels to this question. On the one hand, as the following verse will reveal, God is about to destroy the city (Genesis 19:24–25). The point of the question is an offer of safety: the angels seek to rescue anyone attached to Lot.
At the same time, the Lord had promised Abraham He would not destroy the city if as few as ten righteous people could be found (Genesis 18:32). Lot, his wife, and his two daughters make four, at the most. In the following verses, Lot's attempt to find anyone else to come with him will make it abundantly clear that not even ten righteous people were to be found in Sodom. Both God's justice and His mercy would be satisfied. No righteous people would be swept away with the wicked.