Mcgee...before you try and prove sinless perfection, I suggest you get a definition of what it is first...
1. "Perfect" is also translated as "mature" as a mature Christian in Christ, you would have sound doctrine,be able to discern good and evil, fruit of the Spirit,He..,it does not mean sinless.
Amen! How many people on CC claim to be sinless, without fault or defect, flawless 100% of the time just like God the Father? Are we actually perfect "in that sense?" NO. Matthew 5:48 - Be Perfect - AT Robertson points out - Perfect (teleioi). The word comes from telo, end, goal, limit. The goal set before us, the absolute standard of our Heavenly Father. The word is used also for relative perfection as of adults compared with children.
So absolute perfection, sinless, without fault or defect for us will not become a reality until we are present with the Lord, but that is the goal to strive for. Yet teleioi is also used to refer to the maturity of an adult, which is the end or aim to which the child points. Thus it denotes those who have attained the full development of innate powers, in contrast to those who are still in the undeveloped state (children).
James 1:4 says - But let patience have its perfect work, that you may be perfect and complete, lacking nothing.
James 3:2 says - For we all stumble in many things. If anyone does not stumble in word, he is a perfect man, able also to bridle the whole body.
James 2:22 says - Seest thou how faith wrought with his works, and by works was faith made perfect? The NASB says "was perfected," the ESV says "faith was completed by his works."
I've seen people abuse and misuse the words of Jesus "go and sin no more" in John 8:11 to teach sinless perfection. Jesus was telling the woman to go and leave her life of sin, namely, she had been practicing adultery. Also, Jesus cannot compromise his perfect, holy standard, so of course He is not going to say, "go and just sin a little bit."
Those who believe they live a sinless, without fault or defect, flawless, absolute perfect life 100% of the time (exactly as Jesus lived) are suffering from a terminal case of self righteousness (1 John 1:8-10).