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 obtains salvation for all who have recourse to her. Oh! If all sinners had recourse to Mary, who would ever be lost? ... He who is protected by her will be saved; he who is not will be lost.
Alphonsus LiguoriTo obtain salvation we must tremble at the thought of being lost, and tremble not so much at the thought of hell, as of sin, which alone can send us thither. He who dreads sin avoids dangerous occasions, frequently recommends himself to God, and has recourse to the means of keeping himself in the state of grace. He who acts thus will be saved; but for him who lives not in this manner it is morally impossible to be saved.
Alphonsus Liguori