There you go trying to deceive again with misinterpreting 1 John 1.
Brethren in Christ:
This guy is not going to listen to the Scriptures, and instead is more interested in pushing a false doctrine from men. So here's Apostle John speaking to those who had ALREADY BELIEVED on Lord Jesus Christ...
1 John 1
1 That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the Word of life;
The subject John is speaking of is about the Apostle's witness of Lord Jesus, being with Him, and having actually touched with their hands after His resurrection. So WHO would John being speaking that to that would understand? the un-believer? No, of course not, but to the 'believer' on Christ Jesus.
2 (For the life was manifested, and we have seen it, and bear witness, and shew unto you that eternal life, which was with the Father, and was manifested unto us;)
3 That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.
4 And these things write we unto you, that your joy may be full.
John is simply remarking to other brethren by his Epistle how John and the other Apostles were direct witnesses of Christ Jesus, and desired to be believed by these other brethren of what they directly experienced. It is not a first time preaching to unbelievers.
5 This then is the message which we have heard of Him, and declare unto you, that God is light, and in Him is no darkness at all.
6 If we say that we have fellowship with Him, and walk in darkness, we lie, and do not the truth:
7 But if we walk in the light, as He is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
Now John gets down to the nitty-gritty. It's about the 'walk' in Jesus Christ by The Holy Spirit. Apostle Paul covered this same 'walk' idea in Galatians 3. IF... we walk by The Spirit, then we are not under the law, and won't have sin. But IF... we walk by our flesh, then we are back under the law. And in Romans 7, Apostle Paul revealed how it is not possible to walk perfectly all the time, because of our fleshy members which is captive under sin.
But notice that John speaks of the Blood of Jesus Christ CLEANSING us from sin. For who? for those who have not yet believed on Jesus? or for those who have already... believed on Jesus, and at times, like Apostle Paul said, finding their flesh causing them to slip up at times? It's the latter John is pointing to.
8 If we say that we have no sin, we deceive ourselves, and the truth is not in us.
9 If we confess our sins, He is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.
10 If we say that we have not sinned, we make Him a liar, and His word is not in us.
KJV
In the prayer Lord Jesus told His Apostles to pray ("Our Father Who art in heaven...), Jesus included the asking of forgiveness of sins!
So like I said before, those on man's false OSAS doctrines might just be the ones in Matthew 7 that Jesus will say to get away from Him, ye that work iniquity, because it has to mean they did not maintain their 'walk' with Him, and instead went off on their own, thinking they were already made perfect in this world. But in reality, the devil has trapped those into a huge deception by getting them to disregard future sin, and refusing to 'repent' to Jesus and ask Him forgiveness.