The Apostle Paul is very frank & honest about his (and our) sin nature. The fact is there’s no learning curve needed for human depravity & corruption…we’re born that way. (Psalm 51:5) Our mind, will, and body are all affected by evil. For every day we speak sinful words, do sinful acts, and have unpure thoughts. All because sin is rooted in the very core of our being. But to quote Paul’s writings in Galatians 5:24, “Those who belong to Christ Jesus have crucified the sinful nature with its passions and desires.”…so we can have hope through the blood of Jesus. What Paul is saying metaphorically, is that we can crucify our flesh with all its affections & lusts by putting them to death through our faith & love in Christ. That’s because as a Believer, the Cross not only broke the grip of the Law but also broke the grip of our flesh…so we can then be raised to new life through Him.