Suggest you study the book of Job.
Just in case you are thinking of using Job 1:1, which reads, "There was a man in the land of Uz, whose name was Job; and that man was
perfect and upright, and one that feared God, and turned away from evil" to further promote your agenda, you need to realize that the word "perfect" here does not mean that Job was sinless, without fault of defect, flawless, absolutely perfect 100% of the time.
*Job had admitted his human sinfulness (Job 7:21; 13:26).
The word "perfect" which in Hebrew is "tam" does not necessarily imply absolute sinlessness. It signifies, rather, completeness, integrity, sincerity, but in a relative sense. The Hebrew term tam is equivalent to the Greek teleios, which is often translated perfect in the NT but which is better translated "full grown" or "mature."
In regards to man being sinless:
Ecclesiastes 7:20 - For there is
not a just man on earth who does good and does not sin.
Romans 3:23 -
ALL have sinned and come short of the glory of God.
Like pregnancy...there is no such thing as a little bit righteous.
Either we have been accounted as righteous based on faith in Christ or else we have not. Romans 4:5 - But to him who does not work but
believes on Him who justifies the ungodly,
his faith is accounted for righteousness, 6 just as David also describes the blessedness of the man to whom
God imputes righteousness apart from works. Philippians 3:9 - and be found in Him,
not having my own righteousness, which is from the law, but that which is
through faith in Christ, the righteousness which is from God by faith.