One of the great Christian classics is a devotional booklet written by Saint Thomas à Kempis called The Imitation of Christ. In that book he talks about the struggle that so many Christians have with habits that are sinful. He says that the struggle for sanctification is often so difficult and the victories that we achieve seem to be so few and far between, that even in the lives of the greatest saints, there were few who were able to overcome habitual patterns. We’re talking about people who overeat and have these kinds of temptations, not those who are enslaved to gross and heinous sin. Now Thomas à Kempis’s words are not sacred Scripture, but he gives us wisdom from the life of a great saint.
The author of Hebrews says that we are called to resist the sin that so easily besets us and that we are admonished and exhorted simply to try harder to overcome these sins. You say, How do we escape these pockets of sin that we have such great struggles with, that we have an honest and heartfelt desire not to commit? If the desire not to do it is really honest and penetrates the heart, we’re 90 percent home. In fact, we shouldn’t be locked into something. The reason we continue with these pockets of repeated sins is because we have a heartfelt desire to continue them, not because we have a heartfelt desire to stop them. I wonder how honest our commitment is to quit. There’s a tendency for us to kid ourselves about this anytime we embrace a pet sin. We need to face the fact that we commit the sin because we want to do that sin more than we want to obey Christ at that moment. That doesn’t mean that we have no desire to escape from it, but the level of our desire vacillates. It’s easy to go on a diet after a banquet; it’s hard to stay on a diet if you haven’t eaten all day. That’s what happens particularly with habitual sins that involve physical or sensual appetites. The ebb and flow of the desire is augmented and diminished. It increases and fades. Our resolve to repent is great when our appetites have been satiated, but when they’re not, we have a growing attraction to practice whatever the particular sins may be.
I think what we have to do is first of all be honest about the fact that we really have a conflict of interest between what we want to do and what God wants us to do. I think we have to feed our souls with the Word of God so that we can get what God wants us to do clear in our mind and then build a strong desire to obey.