Saint Teresa, as the Roman Rota attests, never fell into any mortal sin; but still Our Lord showed her the place prepared for her in Hell; not because she deserved Hell, but because, had she not risen from the state of lukewarmness in which she lived, she would in the end have lost the grace of God and been damned.
Alphonsus LiguoriMary having co-operated in our redemption with so much glory to God and so much love for us, Our Lord ordained that no one shall obtain salvation except through her intercession.
Alphonsus LiguoriNew revelations regarding faith or morals ... have always been abhorred and challenged in the Church ... Hence, the Sovereign Pontiffs, the Councils, and the Fathers have been most careful to reject all novelties or new doctrines on matters of faith which differed from those already received.
Alphonsus LiguoriOur Faith will never be true unless it is united to that of St. Peter and the Pontiff, his successors.
Alphonsus LiguoriSt. Jerome declares that he holds for certain, and has learned from experience, that he will never make a good end who has led a bad life to the very last: 'This I hold, this I have learned by much experience, that his will be an evil end who has always led an evil life.'
Alphonsus Liguori