John 3:18

"He that believeth on the Son, is not judged." He that "believeth," not he that is over-curious: he that "believeth," not the busybody. But what if his life be unclean, and his deeds evil? It is of such as these especially that Paul declares, that they are not true believers at all: "They profess that they know God, but in works they deny Him." But here Christ saith, that such an one is not "judged" in this one particular; for his works indeed he shall suffer a severer punishment, but having believed once, he is not chastised for unbelief.

So far, then, as it lies in the physician, He is come to heal the sick. He that will not be saved by Him; thou shalt be judged of thyself. And why do I say, "shall be judged"? See what He says: "He that believeth on Him is not judged, but he that believeth not." What dost thou expect He is going to say, but "is judged"? "Already," saith He, "has been judged." The judgment has not yet appeared, but already it has taken place. For the Lord knoweth them that are His: He knows who are persevering for the crown, and who for the flame; knows the wheat on His threshing-floor, and knows the chaff; knows the good corn, and knows the tares. He that believeth not is already judged. Why judged? "Because he has not believed in the name of the only-begotten Son of God."

(Tr. xii. c. 12) What didst thou expect Him to say of him who believed not, except that he is condemned. Yet mark His words: He that believeth not is condemned already. The Judgment hath not appeared, but it is already given. For the Lord knows who are His; who are awaiting the crown, and who the fire. (de Pecc. mer. et Rem. l. 1. c. 33) Where then do we place baptized children? Amongst those who believe? This is acquired for them by the virtue of the Sacrament, and the pledges of the sponsors. And by this same rule we reckon those who are not baptized, among those who believe not.

(1. xxvi. Mor. c. xxvii. [50.]) Or thus: In the last judgment some perish without being judged, of whom it is here said, He that believeth not is condemned already. For the day of judgment does not try those who for unbelief are already banished from the sight of a discerning judge, are under sentence of damnation; but those, who retaining the profession of faith, have no works to show suitable to that profession. For those who have not kept even the sacraments of faith, do not even hear the curse of the Judge at the last trial. They have already, in the darkness of their unbelief, received their sentence, and are not thought worthy of being convicted by the rebuke of Him whom they had despised Again; For an earthly sovereign, in the government of his state, has a different rule of punishment, in the case of the disaffected subject, and the foreign rebel. In the former case, he consults the civil law; but against the enemy he proceeds at once to war, and repays his malice with the punishment it deserves, without regard to law, inasmuch as he who never submitted to law, has no claim to suffer by the law.

He who believes on Him, and cleaves to Him as a member to the head, will not be condemned. He then gives the reason why he who believeth not is condemned, viz. because he believeth not in the name of the only begotten Son of God. For in this name alone is there salvation. God hath not many sons who can save; He by whom He saves is the Only Begotten.