How can we see what this Scripture talks about?
By keeping old Adam in subjection and feeding the new divine nature, we can see what this Scripture talks about: we are not to sin, and grace is not a license. This requires putting down the instincts of old Adam and keeping him under control so that we sin not, as Paul teaches.
Les explains that the old Adam is constantly working on us to sin and succeeds too often, while the new nature is divine and cannot sin. If we keep old Adam in subjection and feed the new nature, then we can see what this Scripture talks about. Les emphasizes that we are not supposed to sin and that grace is not licensed; where sin abounds, grace is greater, but for the believer grace is not a license. Paul is talking about turning from the instincts of old Adam and putting him down, keeping him under control that we sin not. Les reminds us Paul still has the Corinthian church in mind, where some had not the knowledge of God—carnal believers lacking knowledge and wisdom.