Allah saved him and his family, all of them.
Rescue for those who stood with him
Ibn Kathir says Allah saved Lut from among his people, him and his family. Surrounded by a whole town that rejected him, he was not swept away with them. Allah knew exactly who stood with His messenger.
You work at a company in trouble, live in a neighborhood going downhill, belong to a family with a bad name. Allah does not see you as a crowd. He sees you, one person, and what you chose.
I will go down with whatever group I belong to.
Allah deals with me as a person, and He rescues those who hold on to Him.
Make dua today for your own household by name, one person at a time.