I have thought about this. Yes, repentance is extremely helpful, but I wonder whether it is absolutely necessary for G-d’s mercy. What if, for example, someone else prays for us even though we ourselves do not repent? And even if no one prays for us and we do not repent, might not G-d nonetheless have mercy on us due to His boundless love and wisdom? Perhaps He knows we are not ready to repent, perhaps we are too distraught, too confused, too limited for the time being. G-d perceives our inner heart and our distress as well as our external behavior, and His mercy is well beyond our own and our comprehension. Perhaps we should not place limits on G-d’s mercy, and maybe that is what the Pope means in emphasizing the love of G-d rather than His judgment. Mercy tempers G-d’s judgment, and the former may not only be dependent on our repentance.