Greg's sermon was titled, "It's Okay, I'll Just Confess Later." You can watch it here. He dealt with attitudes about sin using some very vivid word pictures. Unfortunately, I believe the idea captured in his sermon title has so permeated post-modern evangelicalism that persuading the listener to adopt a Biblical attitude about sin is only one small step toward transforming our lackadaisical behavior when it comes to overcoming sin in our personal lives.
From talking to my Christian friends, the general consensus seems to be that overcoming sin is a good ideal to strive for, but since it probably isn't going to happen in this lifetime it doesn't get a lot of focus. The highest value in the post-modern American church seems to be geared around personal relationships more than personal piety. We strive to be accommodating, attractional, and relational and above all avoid offending anyone. Criticism is a definite no-no. Being nice often trumps being truthful. It seems to me that holiness just isn't high on the agenda because, after all, I can just confess it later. As Greg points out in his talk, Jesus took personal piety a lot more seriously. If we are going to be fully devoted followers of Jesus, then shouldn't we take it more seriously too?