I mentioned John 3:5 because some believe the water is from the first physical birth and some believe it's baptismal water. That would make baptismal water be necessary for salvation -- which, actually, even the other writers said it is.
Jesus gave the Apostles the authority to forgive sins.
Why if it's baptism that forgives sins?
This refers again to John 20:23.
Have you studied early church history? It sounds like you have.
At that time persons were baptized to forgive all their prior sins.
It was believed that they would not sin anymore after this (as you believe).
But a problem existed when it was realized that persons were still sinning even
after having been baptized.
This is why the CC had to figure out a way to forgive the sins that were committed AFTER
baptism. Some waited to be on their deathbed to be baptized for this very reason.
Not the Apostolic Fathers nor the Early Church Fathers believed in sinless perfection.
SINLESSNESSAll have sinned and fall short of the glory of God.Rom. 3:23.fjesus] was in all points tempted as we are, yet without sin. Heb. 4:15.[Jesus] committed no sin, nor was guile found in Hismouth. 1 Pet. 2:22.If we say that we have no sin, we deceive ourselves,and the truth is not in us. 1 John 1:8.In Him there is no sin. 1 John 3:5.Christ alone is sinless. However, as far as weare able, let us try to sin as little as possible.Clement of Alexandria (c. 195, E),
2.210.Christ welcomes the repentance of the sinner,for He loves the repentance that follows sins.For this Word of whom we speak alone is sinless. For to sin is natural and common to all.But to return [to God] after sinning is characteristic not of any man, but only of a man ofworth. Clement of Alexandria (c. 195, E),
2.293.I know of no one among men who is perfectin all things at once, as long as he is still human.. . . The only exception is He alone who clothedHimself with humanity for us. Clement of Alexandria (c. 195, E), 2.433.To the Son of God alone was it reserved topersevere to the end without sin. Tertullian (c.197, W),
3.244.The Lord knew Himself to be the only guiltless One, and so He teaches us to beg "to haveour debts remitted us." Tertullian (c. 198, W),
3.684.Now, who is so faultless among men, thatGod could always have him in His choice?Tertullian (c. 201, W),
3.315.In Christ, that same flesh was maintainedwithout sin—which in man was not maintainedwithout sin. Tertullian (c. 210, W),
3.535.God alone is without sin. And the onlyhuman without sin is Christ, since Christ isalso God. Tertullian (c. 210, W),
3.221.I do not inquire as to His own redemption.For, though He was tempted in all things justas we are, He was without sin. His enemiesnever reduced Him to [spiritual] captivity.Origen (c. 228, E),
9.318.If by the phrase, "those who were withoutsin," [the pagan critic Celsus] means those whohave never at any time sinned, .. . we reply thatit is impossible for a human to be without sin inthat manner. In saying this, we except, ofcourse, the man understood to be in ChristJesus, who did not sin. Origen (c. 248, E),
4.489.[Celsus] alleges . . . that "they who are without sin are partakers of a better life." . . . [ORIGEN'S REPLY:] Of those who were without sinfrom the beginning of their lives, there cannotpossibly be any. Even those who are so aftertheir conversion are found to be few in number—being those who have become such aftergiving their allegiance to the saving Word.Origen (c. 248, E),
4.492.Lest anyone should flatter himself that he isinnocent—and should more deeply perish byexalting himself—he is instructed and taughtthat he sins daily. For he is told to pray daily forhis sins. Cyprian (c. 250, W), 5.453.Let no one flatter himself with the notion of apure and immaculate heart. Let no one dependon his own innocence. Let no one think thatthe medicine does not need to be applied to his...