"God forgives us everything, my son," Priest said quietly, and didn't he have the scars on his back to prove that? "What exactly did you do that it cost the life of another human being?"
Really, it was all he could do not to draw away from the man lest he be tainted by association, but he must play the sympathetic priest in this instance. God did forgive everything, after all. If He didn't, where would he himself be at this juncture?
"God only condemns those who do not repent," Priest told Lot seriously. "Have you repented of your crime?"