I believe everyone sins.
Do you mean a born again believer's wrong doing isn't counted as sin? I wouldn't agree to that.
I don't know how to understand 1 John 3:9.
good points - and 1 John has a lot to say on the topic
1 John 3
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.
10 In this the children of God are manifest, and the children of the devil:
whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
1 John 2
My dear children,
I write this to you
so that you will not sin. But
if anybody does sin, we have an advocate with the Father—Jesus Christ, the Righteous One.
2
He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world.
3 We know that we have come to
know him if we keep his commands. 4 Whoever says, “I know him,” but
does not do what he commands is a liar, and the truth is not in that person. 5 But if anyone obeys his word, love for God is truly made complete in them. This is
how we know we are in him: 6 Whoever claims to live in him
must live as Jesus did.
...
9 Anyone who
claims to be in the light but hates a brother or sister is still in the darkness.
Matt 7
21 “
Not everyone who says to Me, ‘Lord, Lord,’ will enter the kingdom of heaven,
but he who does the will of My Father who is in heaven
will enter. 22 Many will say to Me on that day, ‘Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?’ 23 And then I will declare to them, ‘I never knew you; depart from Me,
you who practice lawlessness.’
Romans 2:13
"13
it is not the hearers of the Law
who are just before God, but the
doers of the Law will be justified."
1 John 1
9
If we confess our sins, he is faithful and just and will
forgive us our sins
and purify us from all unrighteousness.
=============================================
Do not be deceived
1 John 3:7 Little children, let no one deceive you. He who practices righteousness is righteous, just as He is righteous.
1 Cor 6
7 Actually, then, it is already a defeat for you, that you have lawsuits with one another. Why not rather be wronged? Why not rather be defrauded? 8 On the contrary, you yourselves wrong and defraud. You do this even to your brethren.
9 Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor homosexuals, 10 nor thieves, nor the covetous, nor drunkards, nor revilers, nor swindlers, will inherit the kingdom of God.