Oh guys, get real. Sometimes, in the pursuit of satisfying my flesh, I become prideful, selfish, even angry or judgmental towards others. Sometimes I begin to doubt and get fearful. I don't WANT to, but anything not of faith is sin. When I get fearful, there is something I'm not believing about God to give you an example. These things aren't willful - afterwards I say "What have I done?"
My flesh is always getting in the way - and I certainly do not will it to do so. Have you not read Paul's struggle in Romans? And, like him, when I keep my mind on the things and purposes of the Spirit, I am not giving in to my flesh.
But it is also true that we just don't always keep our minds on the things of the Spirit. Life's struggles and pains (not to mention physical ones) can disrupt our attention. (Yet those sinful things we do without thinking about them only keep drawing us back into His presence.)
I am sure that I commit sins everyday, but never willfully and can only thank God for his grace. Without that, I would be done for! If I was perfect, I would have no need for the righteousness of Christ. It covers my unrighteousness.
Now comes the debate on this. I stand rooted.