Neither Paul nor John suggest that Christians become sinlessly perfect after conversion. So you wish to simply misrepresent them. Neither does the NT suggest that Christians should persist in sinning. So you need to get your Gospel from Scripture, and here is a good place to start (Titus 2:11-14):
11 For the grace of God that bringeth salvation hath appeared to all men, 12 Teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world; 13Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; 14 Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works.
Paul and John do to as far as what Jesus
accomplishes in us. Jesus did not fail. You fail in your lack of acknowledgement!
Paul: "We are dead to sin." John: "we cannot sin."
But it is possible if we choose to sin even after the desire to sin that Jesus took away is gone. How dumb. That is why the apostles do warn us. But it does not mean that we cannot remain without sin if we continue walking in the Spirit He gave us.
Romans 6:
16 Do you not know that to whom you present yourselves slaves to obey, you are that one’s slaves whom you obey, whether of sin
leading to death, or of obedience
leading to righteousness?
Here is your problem and why you are not free from sin, and probably never will be.
Proverbs 23:7
For as he
thinks in his
heart, so
is he.
Paul knew the truth of that verse so instead of just stating the fact that we are dead to sin, he also emphasized reckoning yourself (
thinking of yourself) dead to sin.
You believe the false doctrines of demons, and thus you chose to justify your sin because you do not believe you have a choice. I live in the victory Jesus gave me, and will remain keeping myself pure for the same reason you won't. Proverbs 23:7. How foolish you and so many on these forums are. But there is nothing you can do to stop me from proclaiming the majesty of what Jesus accomplished, destroying the works of Satan in me and others, if not you.
5 And you know that He was manifested to take away our sins, and in Him there is no sin...For this purpose the Son of God was manifested, that He might destroy the works of the devil. 1 John 3
1 John 5:18
18 We know that whoever is born of God does not sin; but he who has been born of God
keeps himself, and the wicked one does not touch him.
1 John 3:3
3 And everyone who has this hope
fixed on Him purifies himself, just as He is pure.
Isaiah 26:3
“The
steadfast of
mind You will keep in perfect peace, Because he trusts in You.
1 Peter 1:16 "Be holy for I am holy."