The problem comes from not having a redeemed body as of yet. The soul is saved and spiritually circumcised from the body of flesh, but we still dwell in this body of flesh which has not been changed and redeemed.
2 Corinthians 5:17 Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
Notice the body is not in Christ but the inner man. Our inner man is a new creature, born again. All things about my soul have been made new. I was guilty. I was considered a sinner. I was not justified. I was an enemy of Christ. I was in Adam. But when salvation came, I am now not guilty. I am sinless. I am justified. I am a co-heir with Christ. I am in Christ.
We are a 3 part being....Spirit, Soul[mind, will, emotions, passions, intellect] and Body/flesh
Your flesh will obey whoever is in charge...the soul or the spirit. If your spirit, which you have correctly, stated is made perfect at conversion is leading you, your Soul[mind, will, emotions, passions, intellect] must be transformed through renewing it to the Word of God, when the Spirit mind is in control and the soul[mind] is subjected to the Spirt, then the soul[mind] is now inline with the Spirit and when a temptation to look at a woman in lust is manifested, you refuse to be enticed to that temptation, SIN never was born, because lust was never conceived in the heart. [James 1.13-16]
SIN is not temptation!
You don't need a redeemed body to keep from sinning. All temptation starts in the carnal soul[mind] of a man. This will be hard for anyone to accept if they do not understand man is a 3 part being.
James 1.13-16
[SUP]13 [/SUP]Let no one say when he is tempted, “I am being tempted by God”; for God cannot be tempted by evil, and He Himself does not tempt anyone. [SUP]14 [/SUP]But each one is tempted when he is carried away and enticed by his own lust. [SUP]15 [/SUP]Then when lust has conceived, it gives birth to sin; and when sin is accomplished, it brings forth death. [SUP]16 [/SUP]Do not be deceived, my beloved brethren.
This proves as Does Genesis 3 and 4 that SIN is and always has been a choice. David was not powerless over his lust over Bath-Sheba and the murder of Uriah. He chose to stay home instead of being on the Battle field where he should have been all along.
We have hirelings telling saints they are powerless and still sinners, because it fattens their wallets and keeps them in control.
John 9 & 10 prove this out in spades.
Where peeps fall into the ditch on this, is the doctrine of sinless perfection., that is a false teaching...This is because they think their whole Spirit, SOul adn Body are made perfect at conversion. This is not true, only, as you stated, your inner man is made perfect.
We gain spiritual maturity[perfection] through offering current body/flesh as a living and holy sacrifice , acceptable to God and not conformed but transformed by the renewing of our minds[soul]
Stating you are a sinner saved by grace after conversion should be reserved for Babes in Christ...but as they spiritually mature, they should come to understand they are a new creation....We do not see this develop a lot, because most hirelings have never progressed past sinner saved by grace thinking themselves. This is why Jesus said the blind leading the blind ends with both in a ditch...
This is not done by any human effort...this is where grace only theology stops and cannot understand manifold graces like enabling and restraining grace....This is where Pentecostal theology get bogged down in spiritualism about gifts and tongues...
The ability to do in your spirit what you cannot do in your flesh comes from Baptism in the Holy Spirit, after conversion. Jesus is the Baptizer into the Holy Spirit and the very first initial evidence of this Baptism is not tongues, it is AGAPE LOVE and then the other fruit of the Spirit.