You need to see John was saying if one says he or she says they have never sinned they are liars.
If one is forgiven of all unrighteousness are they not then sinless? Could they then be liars if they say they are sinless?
John later says:
(1 John 3:3-9) Surely everyone who entertains this hope must purify himself, must try to be as pure as Christ. Any one who sins at all breaks the law, because to sin is to break the law. Now you know that He appeared in order to abolish sin, and that in Him there is no sin: anyone who lives in God does not sin, and anyone who sins has never seen Him or known Him. My children do not let anyone lead you astray to live a Read this, you need to see John was saying: If we claim we have not sinned, we make him out to be a liar. Cant you see John was telling people everyone has sinned, and one would be a liar if he said they had not? John was not telling people who no longer sinned that they were liars by admitting they no longer sinned.
By not believing that John is telling us we are to live without sinning is calling John a liar. John tells us one who sins has never known God.
(1 John 1: 8-10) If we claim to be without sin, we deceive ourselves and the truth is not in us. If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness. If we claim we have not sinned, we make him out to be a liar and his word has no place in our lives.
holy life is to be holy just as He is holy to lead a sinful life is to belong the Devil, since the Devil was a sinner from the beginning. It was to undo all that the Devil has done that the Son of God appeared. No one who has been begotten by God sins: because Gods seed remains inside him, he cannot sin when he has been begotten by God.
(1 John 3:8) He who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil's work
John told us those who did not know God sinned and asked forgiveness and were forgiven, but once a person comes to know God he or she will not sin.
Scripture goes on to say that if a person who does know God uses their free will to sin there is no repentance for that person.
(Hebrews 10:26-31) If, after we have been given knowledge of the truth, we should deliberately commit any sins, then there is no longer any sacrifice for them. There is left only the dreadful prospect of judgment and of the fiery wrath that is to devour your enemies. Anyone who disregards the Law of Moses is ruthlessly put to death on the word of two witnesses or three; and you may be sure that anyone who tramples on the Son of God, and who treats the blood of the covenant which sanctified him as if it were not holy, and who insults the Spirit of grace, will be condemned to a far severer punishment. We are all aware who it was that said: Vengeance is mine; I will vindicate his people. It is a dreadful thing to fall into the hands of the living God.
(Hebrews 6: 4) As for those people who were once brought into the light, and tasted the gift from heaven, and received a share of the Holy Spirit, and appreciated the good message of God and the powers of the world to come and yet in spite of this have fallen away it is impossible for that to be renewed a second time. They cannot be repentant if they have willfully crucified the Son of God and openly mocked Him.
do you understand that John was speaking to a church of believers in Ephesus and this scripture is not referring to a past tense but has the meaning of a continuing condition... this was not a scripture to brand new believers but it was a scripture to believers to remind them Who is just and faithful and has forgiven us of our sins... just like in Hebrews where it states we are able now to approach the throne of grace because we know with confidence Who we are approaching....
Hebrews 4:11-16 (King James Version)
11 Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.12 For the word of God is quick , and powerful, and sharper than any two edged sword, piercing even to the dividing asunder of soul and *spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.13 Neither is there any creature that is not manifest in his sight: but all things are naked and opened unto the eyes of him with whom we have to do.14 Seeing then that we have a great high priest, that is passed into the heavens, Jesus the Son of God, let us hold fast our profession.15 For we have not an high priest which cannot * be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.16 Let us therefore come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need.
next 1 John 3:3-9 (King James Version)
3 And every man that hath this hope in him purifieth himself, even as he is pure.4 Whosoever committeth sin transgresseth *also the law: for sin is the transgression of the law.5 And ye know that he was manifested to take away our sins; and in him is no sin.6 Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.7 Little children, let no man deceive you: he that doeth righteousness is righteous, even as he is righteous.8 He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested , that he might destroy the works of the devil.9 Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot *sin , because he is born of God.
this is talking about the practice of sin... the word committeth is defined as purposely intending to sin... to better understand this you must reconcile this with Paul's teaching in Romans 7:14-25...
14 For we know that the law is spiritual: but I am carnal, sold under sin.15 For that which I do I allow not: for what I would , that do I not; but what I hate , that do I . 16 If then I do that which I would not, I consent unto the law that it is good.17 Now then it is no more I that do it, but sin that dwelleth in me.18 For I know that in me (that is , in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good I find not.19 For the good that I would I do not: but the evil which I would not, that I do . 20 Now if I do that I would not, it is no more *I that do it, but sin that dwelleth in me.21 I find then a law, that, when I would do good, evil is present with me.22 For I delight in the law of God after the inward man:23 But I see another law in my members, warring against the law of my mind, and bringing me into captivity to the law of sin which is in my members.24 O wretched man that I am! who shall deliver me from the body of this death?25 I thank God through Jesus Christ our Lord. So then with the mind I myself serve * the law of God; but with the flesh the law of sin.