The Christian's rule of life is to be like Christ—the only rule he has—and we find the details of it in Scripture. We have to seek such power of Christ over the affections, that we are longing to be like Him. There is joy in that kind of activity, the heart growing naturally like Him in real spiritual diligence— occupied with Him. Not satisfied with merely avoiding evil, but being occupied with Christ, the heart is full of Christ. Then evil looks like evil—you see it in its true character.