There's your first mistake.
Why do you refuse to answer my question?:
Have you sinned since you were saved?
Why in the world would you refuse to answer that simple question? What are you trying to hide?
Your second is not understanding that sin is transgression of the law and we are no longer under the law but under grace.
We are not under law as far as our righteousness before God is concerned:
"For Christ is the end of law for righteousness to every one that believeth" (Ro.10:4).
If Paul didn't think that Christians cannot sin since they are not under law then it would make no sense for him to say this to Christians:
"Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry" (Col.3:5).
According to you all of those sins were put to death when these believers were saved. So tell me how those sins can be put to death since, according to you, they were put to death when those people were saved.
And you failed to answer this verse:
"Having therefore these promises, dearly beloved, let us cleanse ourselves from all filthinesss of the flesh and spirit, perfecting holiness in the fear of God" (2 Cor.7:1).
If a person is dead to sin or incapable of sinning once he is saved then explain what the source of his filthiness is at 2 Corinthians 7:1.
Now, LIAR, admit you purposely misquoted me about having your "head up your butt." Those were not my words but your words....deceitful one.
Then tell me on which thread I said that and what post number.