Paul stated the Corinthians were the church of the living God and they were far from sinless
Paul wrote of how he tested the obedience of them all and found them to be obedient (2 Corinthians 2:9, 7:15).
Therefore, those who were sinful in the Corinthian church were very likely not yet born again.
James told his readers to confess their sins/faults one to another.
A person can be justified and yet not born again. In confessing their sins, they would be forgiven of their sins and cleansed from all unrighteousness (1 John 1:9).
John states if we claim to be without sin we deceive ourselves and the truth is not in us.
However, the element of sin, dwelling within us, can be rendered dead (Romans 6:6, Galatians 5:24, Romans 7:8) so that it no longer has any say over our behaviour (Romans 6:14).
Peter told those he termed born again to rid themselves of all malice and all deceit, hypocrisy, envy, and slander of every kind.
You have a distorted view of what it means to be born again. Think of what each of those sins would be in the life of a Christian.
You would really purport that someone who is regenerated and renewed in the Holy Ghost can exhibit such attributes?
Paul stated that while believers seek to be justified in Christ(in respect of crossing over from being a slave of sin to a slave of righteousness) it would be evident they were sinners.
Again, those who have been justified may not necessarily yet be born again.
Paul stated he was not yet perfect.
In context of Philippians 3:12-14, where Paul said that he had not apprehended, he said that
as many as are perfect ought to have this attitude (that they have room to grow)...Philippians 3:15.
Paul stated believers should offer themselves as slaves to righteousness leading to holiness. If they were perfect in the flesh/sinless they would not be being led into holiness they would already be perfectly holy.
Again, those who are justified are not necessarily yet born again.
Paul asked the thesalonians to live more and more as he had instructed them. If they were already sinless, leading a perfect life in the flesh he wouldn’t have needed to ask that.
Obviously Paul set forth entire sanctification to the Thessalonians as something that God would do for them in the future (1 Thessalonians 5:24).
That’s the real world. Reeling off the partial letter of scripture and claiming nigh on sinless perfection is not. The Apostles taught the ideal way obviously, that does not mean they believed anyone could or would perfectly follow it at all times without deviation. From the above comments they obviously knew they would not.
We are not obligated to obey the flesh (Romans 8:12 (kjv, NLT)).
Therefore, it is possible to walk, not after the flesh but after the Spirit (Romans 8:4) for an extended period of time; even for the rest of your life (Luke 1:74-75).
It is not a good place to be, to only have a head theology based on the letter-or partial letter. And it is an even worse place to be when you proclaim you perfectly follow that letter
That is not something I have claimed.
What I have claimed is that the righteousness of the law is fulfilled in me inasmuch as I walk not after the flesh but after the Spirit (Romans 8:4);
And that it is possible, according to scripture, that we might be able to walk consistently, not after the flesh but after the Spirit, for an extended period of time; even for the rest of our lives (Luke 1:74-75).
For we are not obligated to obey the flesh (Romans 8:12 (kjv, NLT)).