Despite all the sin and shame that Lot's compromises produced, the Lord loved him. He was one of those sheep for whom Christ came to lay down His life. Grace did not remove the natural consequences of his actions in this life, but it did guarantee repentance and trust in God.
Rome’s apologists commonly attack the epistemological foundations of the evangelicals: "How can you be sure that your beliefs are truly biblical and apostolic?" The doubt they want you to have is this: “I've been wrong many times. Can I anymore base my beliefs on my understanding of the scriptures?” To this troubled mind, Rome promises to give the perfect solution: the infallible authority of the Roman Church that Christ promised would not fail.