"For I know that good itself does not dwell in me, that is, in my sinful nature. For I have the desire to do what is good, but I cannot carry it out." These were the words spoken by Paul in Romans 7:18. In Matthew 16 of this week's readings we saw Peter encouraged by Jesus, who called him the "Rock" in verse 18. Moments later Peter makes a horrible comment, and Jesus goes from calling Peter the "Rock" to "Satan." How is it that we want God to do a work in our lives but we can so quickly turn away (like Paul & Peter)?