Since we have these promises, beloved, let us cleanse ourselves from every defilement of body and spirit, bringing holiness to completion in the fear of God. – 2 Corinthians 7:1 ESV
What promises? Paul has just quoted from several Old Testament passages containing the following promises from God:
I will walk among you and will be your God, and you shall be my people. – Leviticus 26:12 ESV
My dwelling place shall be with them, and I will be their God, and they shall be my people. – Ezekiel 37:27 ESV
I will be to him a father, and he shall be to me a son. – 2 Samuel 7:14 ESV
Now, he declares, with those promises in mind, what should our reaction be? How should we respond? Paul is reminding his readers that they, like the Israelites of the Old Testament, have been set apart by God. He has chosen them to be His people and has graciously agreed to be there God. He has consecrated them, set the apart from the rest of the nations, to be His own possession. As children of God, they were to live separately and distinctively. That does not mean that Christians are to live their lives in isolation or in some kind of segregated society, separated from the rest of the world. This is not a call to monastic isolationism. But it is a call to sanctification or holiness. Paul expected the believers to he was writing to live in such a way that their behavior differentiated them from the rest of the world. As Jesus prayed in the garden on the night He was betrayed, they were to be in the world, but not of it.
I have given them your word. And the world hates them because they do not belong to the world, just as I do not belong to the world. I’m not asking you to take them out of the world, but to keep them safe from the evil one. They do not belong to this world any more than I do. Make them holy by your truth; teach them your word, which is truth. – John 17:14-17 NLT
The promise of citizenship in God’s Kingdom was to create in them a passion to live as who God had called them to be. They were His possession and their lives were to reflect that unique privilege and totally undeserved position. They were to cleanse themselves from every defilement of body and spirit. Like a stained and soiled garment, they required removal of the impurities that accompanied their sinful flesh. Their old habits and sinful predilections had to be systematically and regularly done away with. In his letter to the Thessalonians, Paul emphasized the essential nature of this ongoing cleansing of the believer’s life.
God’s will is for you to be holy, so stay away from all sexual sin. Then each of you will control his own body and live in holiness and honor—not in lustful passion like the pagans who do not know God and his ways. Never harm or cheat a Christian brother in this matter by violating his wife, for the Lord avenges all such sins, as we have solemnly warned you before. God has called us to live holy lives, not impure lives. – 1 Thessalonians 4:3-7 NLT
The privilege of sonship carries with it responsibilities. As children of God, we are to behave in such a way that our lives honor our heavenly Father. Ongoing sin is not to be a defining characteristic of the child of God. Paul was not insinuating that Christians cannot and will not sin. He would have wholeheartedly agreed with the apostle John when he wrote:
If we claim we have no sin, we are only fooling ourselves and not living in the truth. But if we confess our sins to him, he is faithful and just to forgive us our sins and to cleanse us from all wickedness. If we claim we have not sinned, we are calling God a liar and showing that his word has no place in our hearts. – 1 John 1:8-10 NLT
The presence of and potential for sin is not eliminated when we come to faith in Christ, but sin’s power over us is. We are set free from its control over us. Because of the Holy Spirit’s presence within us, we have a capability to choose righteousness over unrighteousness. We can refuse to give in to the temptations that once captivated and controlled us.
Paul’s point in all of this is that our salvation in Christ has a second step: Our sanctification. Coming to faith in Christ is to be accompanied by our ongoing transformation into His likeness. And it is as we cleanse ourselves from every defilement of body and spirit that we experience what Paul refers to as “bringing holiness to completion.” The goal of our salvation is our ultimate glorification by God. There is a day coming when He will complete the process of renewal and reformation of our lives by giving us a new body. Sin will be completely eliminated and our transformation into the likeness of Christ will be complete. John describes that day in the following way:
Dear friends, we are already God’s children, but he has not yet shown us what we will be like when Christ appears. But we do know that we will be like him, for we will see him as he really is. – 1 John 3:2 NLT
In the meantime, while we wait for that day, we are to strive toward holiness. In order to accomplish that objective, we are required to put off our old sinful nature and put on our new nature. We are to allow the Holy Spirit to expose the sin in our lives so we can confess it and enjoy forgiveness for it. We are to flee sin and pursue righteousness.
Run from sexual sin! No other sin so clearly affects the body as this one does. For sexual immorality is a sin against your own body. – 1 Corinthians 6:18 NLT
Run from anything that stimulates youthful lusts. Instead, pursue righteous living, faithfulness, love, and peace. Enjoy the companionship of those who call on the Lord with pure hearts. – 2 Timothy 2:22 NLT
…so run from all these evil things. Pursue righteousness and a godly life, along with faith, love, perseverance, and gentleness. – 1 Timothy 6:11 NLT
Therefore, if anyone cleanses himself from what is dishonorable, he will be a vessel for honorable use, set apart as holy, useful to the master of the house, ready for every good work. – 2 Timothy 2:21 ESV
So put to death the sinful, earthly things lurking within you. Have nothing to do with sexual immorality, impurity, lust, and evil desires. Don’t be greedy, for a greedy person is an idolater, worshiping the things of this world. – Colossians 3:5 NLT
If you have been called by God to be His child, live like it. If you know the joy of having your debt to God paid for and your sins forgiven because of Jesus’ death on the cross, your lifestyle should reflect your gratitude and your recognition that you are a new creation with a new capacity to pursue holiness, not sinfulness. The behavior of children reflects back on their parents. Our behavior as sons and daughters of God reflects back on our heavenly Father. Our attitudes and actions should honor Him. Our behavior should bring glory to Him. It was Jesus who said, “let your good deeds shine out for all to see, so that everyone will praise your heavenly Father” (Matthew 5:16 NLT). And it was Peter who echoed that sentiment when he wrote: “Be careful to live properly among your unbelieving neighbors. Then even if they accuse you of doing wrong, they will see your honorable behavior, and they will give honor to God when he judges the world” (1 Peter 2:12 NLT). Pursue holiness. Strive after righteousness. Make godliness your goal. For the glory of God and the good of others.