If you want to know how these two issues relate, you must hear John Piper’s message from the Passion ’07 conference, which is available for viewing here until midnight Friday January 12th. Click on Main session 4. He starts about 47 minutes into the session. Or you can read his sermon manuscript here. His title should grab your attention: “How to Deal with the Guilt of Sexual Failure for the Glory of Christ and His Global Cause.”
You can find the “M & M” article here.