--St. Alphonsus de Liguori http://www.archive.org/stream/sermonsforallsun00liguuoft/sermonsforallsun00liguuoft_djvu.txt
I Peter iv. 18 And if the just man shall scarce be saved: where shall the impious and sinner appear? Rheims bible (1582) commentary:
18.[ If the just. ] Not that a man dying just and in the favor of God, can afterward be in doubt of his salvation, or may be rejected of God: but that the just being both in this life subject to assaults, tentations, troubles, and dangers of falling from God and losing their state of justice, and also oftentimes to make a strait count, and to be temporally chastised in the next life, cannot be saved without great watch, fears, and trembling, and much laboring and chastisement. And this is far contrary to the Protestants doctrine, that putteth no justice but in faith alone, maketh none just in deed and in truth, teacheth men to be so secure and assured of their salvation, that he that hath lived wickedly all his life, if he only have their faith at his death, that is, if he believe steadfastly that he is one of the elect, he shall be as sure of his salvation immediately after his departure, as the best liver in the world.
Commentary in the Challoner version:
18 "Scarcely" "That is, not without much labour and difficulty; and because of the dangers which constantly surround, the temptations of the world, of the devil, and of our own corrupt nature."