FLESH SERIES: Sex, Lust, Porn and The Christian


Most of us know that lust is a problem. That’s probably why you’re reading this right now. But many of us either don’t know how to fight this battle well or have given up due to feeling defeated time and time again. So, before we look at the battle in greater depth in the following lessons, let’s first focus on what is at stake. 

Of all the passages relevant to our battle against lust, nothing exceeds the following verse in importance:

“Therefore do not let sin reign in your mortal body so that you obey its evil desires” (Romans 6:12).

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The idea is simple enough: don’t let sin set up a kingdom in your life by which it may gain leverage as the controlling influence of your behavior. But even with an explanation, the insight of this verse is lost on those new to the Bible. The New Testament has what theologian Gordon Fee calls a symbolic universe – words that carry with them imported meaning. That imported meaning comes from the world of the Old Testament. Certain Old Testament analogies are obvious, says Fee, but many words and phrases contain a meaningful echo for those who have grown up with or been saturated in Old Testament stories.

Fee illustrates what he means by relaying a conversation he once had with an Australian. During the conversation, he uttered the phrase “four score and seven years ago,” to which the Australian queried, “What does 84 years have to do with anything?” That phrase from President Abraham Lincoln’s speech is a part of the “symbolic universe” of America. Grammar school children in America memorize the speech. But it is totally lost on outsiders, or at the very least, Australians. In much the same way, when the early Christians heard Romans 6:12, they would have had this understanding based on what they knew from the Old Testament:

In the book of Joshua in the Bible, we are given the account of how God delivered the land He had promised into the hands of the Israelites. While the land was a gift, they still needed to engage in conquering it. (This is the kind of gift I’m tempted to give: “You see that football stadium on your campus? It’s yours. Simply kick out the 80,000 people who attend games there, as well as the football team – a mere formality.”)

Of course, the Israelites were promised God’s power, protection and direction in the task. They were ordered to drive out or destroy all who lived in the land before they could fully occupy the territory. Most, however, did not follow God’s command. They surged forward, and when the fighting became too difficult, they compromised and allowed certain portions of the land to remain unclaimed and unconquered. As a result, we see Joshua encouraging them to take full conquest of the land:

So Joshua said to the Israelites, “How long will you wait before you begin to take possession of the land that the Lord, the God of your fathers, has given you (Joshua 18:3)?

How Strongholds Develop

They did wait and allowed powerful pockets of the land’s inhabitants to form in the unchallenged territory. These pockets became strongholds: unconquered kingdoms within the borders of the Promised Land. Not content to remain little islands and outposts, they waged terrorist attacks against the Israelites, steadily growing in power until we read, “The Israelites prepared shelters for themselves in mountain clefts, caves and strongholds” (Judges 6:2).

The Israelites didn’t fully drive out their enemy and allowed strongholds to remain from which their enemy began to reign. The result was that the Israelites were run out of their towns and houses. They found themselves hiding in hills within the land they owned and should have controlled.

The implications for our spiritual growth and our fight against lust should be obvious: when we let lust remain in our lives, it grows in power and influence until it is controlling our life as much or more than God. The battle against lust is “kill, or be killed,” “fight, or be attacked,” “conquer, or be conquered.” Allowing lust to remain, or tolerating its presence, is not one of our options. What Joshua was calling for, and what the passage in Romans is calling for, is a decision to fight. We are to commit ourselves to completely clearing the land so that there isn’t a trace, “not a hint,” of our enemy, lust.

Go Ahead and Make the Decision

Many components factor into our victory against lust, but none is as important as the decision to fight, to take full possession of the land (our lives). Of course, we cannot do this simply through our own will power. We need a team of people around us and to tap into the power of the Holy Spirit at work within us. In reading through the volumes of literature on this topic, we found this major common denominator for those who have seen victory: a clear, memorable decision or resolution to fight, to clear the land completely, to make no compromise nor to allow even a hint of sexual immorality.

This commitment to fight is not a vow that we will never stumble. Every war has its lost battles and casualties. It is, however, a pledge to strive with all of God’s resources and strength, and with all of ours, to the highest possible standard. It is a commitment to perseverance, to never give in and to take whatever actions, no matter how drastic, to gain victory.

In the following passage, Joshua says to the Israelite people:

But if serving the Lord seems undesirable to you, then choose for yourselves this day whom you will serve, whether the gods your forefathers served beyond the River, or the gods of the Amorites, in whose land you are living. But as for me and my household, we will serve the Lord (Joshua 24:15).

There is no place in the Christian life for promises we cannot keep, for confidence in our will or vows of future victory. Scripture puts forth strong language calling people to decide, choose or follow. This call is often framed in language that suggests that after the choice is made, nothing will be the same. There is no turning back. Those who have seen victory have made such a decision. The proof of that commitment is not always seen in the daily battle reports but in the tenacity and resolve to keep fighting after the experience of a setback or many setbacks. Commitment, as with love, is measured by its passion and determination, its priority to the goal and its duration.

So, maybe you’ve given up on fighting due to feeling that winning this battle is hopeless. Or maybe you’ve lost sight of what is at stake in this battle. We’d encourage you once again, to commit to fighting this battle with all you’ve got in the power of the Holy Spirit. One sexual purity resource, “Living Free”, suggests taking the time to consider the consequences down the road were you not to begin fighting this battle well.1 Consider: How will this affect your future marriage? Your future family? How will this impact your view of yourself and others? How will your intimacy with God and others be affected? Take time to mull over these questions and consider the sobering reality of what is truly at stake.

We encourage you to make a decision to fight and to persevere until the “land” is completely taken. End the truce, and make a declaration of war. Such a commitment is in no way affected by a future failure but should only spur us to return to the fight with resolve until victory is attained. On the following page is a sample commitment you can use if you find it helpful.

Next Steps

  1. Sign the Commitment to Fight with us as we begin this 10-week study journey together.
  2. The battle of lust is won in the context of community through the power of the Holy Spirit. Our prayer is that you will partake in this journey alongside other men. Recruit a couple friends or your small group/bible study to go through this journey with you.


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1 Ben Bennett, Brett Butcher, Ted Roberts Living Free (Pure Desire Ministries International, 2016), 32.

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