The only way to kill sin is to mortify the roots of sin in the motives, desires, and drives of the heart. But to detect these desires we have to look comprehensively at our lives. You can’t measure holiness by simply taking one or two slices of behavioral patterns. In the two examples above, if you only focused on behavior in one area of John or Jennifer’s life, you could easily be misled. You could think, “here is a tree that produces only good fruit.” But that would be a false assessment, based