23 Now may the God of peace himself sanctify you completely, and may your whole spirit and soul and body be kept blameless at the coming of our Lord Jesus Christ. 24 He who calls you is faithful; he will surely do it.
25 Brothers, pray for us.
26 Greet all the brothers with a holy kiss.
27 I put you under oath before the Lord to have this letter read to all the brothers.
28 The grace of our Lord Jesus Christ be with you. – 1 Thessalonians 5:23-28 ESV
As Paul wraps up his letter, he provides a brief summary of its content. He has covered a lot of territory, but when all is said and done, what Paul has been trying to emphasize is their sanctification. This has been the primary point of his letter. Remember, back in chapter four Paul stated: “For this is the will of God, your sanctification” (1 Thessalonians 4:3 ESV). According to Paul, the divine will is that the life of each and every believer reflect their status as having been set apart by God for His use. It’s an obligation and not an option they can choose to ignore.
The apostle Peter made this non-optional aspect of God’s will quite clear when he wrote: “…but as he who called you is holy, you also be holy in all your conduct, since it is written, ‘You shall be holy, for I am holy’” (1 Peter 1:15-16 ESV). The Greek word for “holy” is hagios and the Greek word for “sanctification” is hagiasmos. Followers of Jesus Christ have been set apart or consecrated by God, and their lives are to reflect their status as His possession. They are no longer free to do and think as they please. Which is why Paul told the Corinthian believers:
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. Don’t you realize that your body is the temple of the Holy Spirit, who lives in you and was given to you by God? You do not belong to yourself, for God bought you with a high price. So you must honor God with your body. – 1 Corinthians 6:18-20 NLT
And Paul told the Thessalonians something very similar and linked it to their status as having been sanctified by God.
For this is the will of God, your sanctification: that you abstain from sexual immorality; that each one of you know how to control his own body in holiness and honor. – 1 Thessalonians 4:3 ESV
With this simple, yet profound sentence, Paul eliminates any thought the Thessalonians may have had about maintaining a semblance of their old lifestyles. Paul is emphatic when he states, “run from sexual sin!” He leaves no room for debate when he demands, “abstain from sexual immorality!”
Paul warned Timothy, “Run from anything that stimulates youthful lusts. Instead, pursue righteous living, faithfulness, love, and peace” (2 Timothy 2:22 NLT). In another letter, Paul reminded Timothy that he belonged to God and he was to love like it.
But you, Timothy, are a man of God; so run from all these evil things. Pursue righteousness and a godly life, along with faith, love, perseverance, and gentleness. Fight the good fight for the true faith. Hold tightly to the eternal life to which God has called you, which you have confessed so well before many witnesses. – 1 Timothy 6:11-12 NLT
From Paul’s perspective, the sanctified life that God willed for His children was non-optional and required constant attention and effort. But the goal of all this effort and energy is so that we will be useful to God. Which is exactly what Paul told Timothy.
So if anyone cleanses himself of what is unfit, he will be a vessel for honor: sanctified, useful to the Master, and prepared for every good work. – 2 Timothy 2:21 BSB
But when it comes to the topic of sanctification, there is a very important part we tend to leave out, and Paul brings it up as he closes out his letter. He knows that God’s call to live set apart lives is a daunting one. He also knows it will prove impossible if attempted without God’s help. The life of holiness is not something we can pull off on our own. Which is why Paul offered this short prayer on behalf of his brothers and sisters in Thessalonica: “Now may the God of peace himself sanctify you completely” (1 Thessalonians 5:23 ESV). Their sanctification was not only God’s will, but it was His responsibility. God didn’t provide for their salvation and then leave their sanctification up to them. God doesn’t didn’t adopt them into His family and then leave them to fend for themselves. Paul wanted all those under his leadership and care to live with the assurance “that he who began a good work in you will bring it to completion at the day of Jesus Christ” (Philippians 1:6 ESV).
And Paul continues his prayer on behalf of the Thessalonians, stating, “may your whole spirit and soul and body be kept blameless until our Lord Jesus Christ comes again” (1 Thessalonians 5:23 NLT). Notice that phrase, “be kept blameless.” Paul uses the Greek word, tēreō, which means “to keep or preserve.” It could be used metaphorically to refer to “keeping one in the state in which he is.” Paul is assuring them that God is the one who will maintain their set-apart status. But he isn’t suggesting that God is going to keep them just like they were when He saved them. Notice that Paul addresses the whole nature of man: spirit, soul, and body. And he asks that God preserve every aspect of the believer’s life as faultless. He isn’t speaking of sinless perfection, but of a life where sin no longer enslaves and controls one’s actions.
A blameless man was an individual whose life was no longer dominated by sinful habits. He lived under the control of the Spirit of God, and his life reflected the fruit of the Spirit. That is why Paul demanded that all elder candidates be blameless men – men who were above reproach. No one could point a finger at them and cast dispersions on their character. Their reputations, while not perfect, were expected to be free from sinful habit or questionable behaviors.
And, according to Paul, it is God alone who makes that kind of life possible. That is what he means when he says, “He who calls you is faithful; he will surely do it” (1 Thessalonians 5:24 ESV). But again, that doesn’t leave the believer with no role to play or any responsibility to pursue Christlikeness. Paul’s point is that if sanctification is God’s will for us, it should be our will as well. We should desire what God does. If He has sanctified us – set us apart – we should pursue a life that reflects that reality. But here is an often overlooked aspect of the sanctified life. IT ISN’T ABOUT US.
In other words, if we are not careful, we will pursue holiness for our own glory. We will attempt to live godly lives so that God will be pleased with us and others will think more highly of us. But that kind of approach to sanctification is missing the point altogether. Paul would have us remember that we exist to bring God glory. And when we live set-apart lives, in the power of the Spirit, we bring Him glory. And our sanctification is to influence every area of our lives. Which is why Paul said, “So, whether you eat or drink, or whatever you do, do all to the glory of God” 1 Corinthians 10:31 ESV). Even in the mundane, everyday things of life, our goal should be God’s glory, not our own. And according to Peter, when using the gifts given to us by God, our focus should never be receiving glory but giving glory to God.
If anyone speaks, he should speak as one conveying the words of God. If anyone serves, he should serve with the strength God provides, so that in all things God may be glorified through Jesus Christ, to whom be the glory and the power forever and ever. – 1 Peter 4:11 BSB
Peter also reminds us that our pursuit of holy conduct and character should be less about us and more about the lost around us.
Conduct yourselves with such honor among the Gentiles that, though they slander you as evildoers, they may see your good deeds and glorify God on the day He visits us.
– 1 Peter 2:12 BSB
God wills our sanctification. He makes possible our sanctification. And He will one day complete our sanctification. All for our good and His glory. And with that assurance in mind, we should make it our highest priority to desire the good that God has willed for us. Not so we will look good in front of our believing friends. But so that God will be glorified before a lost and dying world. To God be the glory, great things He has done.
To God be the glory, great things he has done!
So loved he the world that he gave us his Son,
who yielded his life an atonement for sin,
and opened the life-gate that we may go in.
O perfect redemption, the purchase of blood!
To ev'ry believer the promise of God;
the vilest offender who truly believes,
that moment from Jesus forgiveness receives. [Refrain]
Great things he has taught us, great things he has done,
and great our rejoicing through Jesus the Son;
but purer and higher and greater will be
our wonder, our transport, when Jesus we see
Praise the Lord, praise the Lord,
let the earth hear his voice!
Praise the Lord, praise the Lord,
let the people rejoice!
O come to the Father thro' Jesus the Son,
and give him the glory, great things he has done!
– Fanny Crosby (1875)
English Standard Version (ESV) The Holy Bible, English Standard Version. ESV® Permanent Text Edition® (2016). Copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.
New Living Translation (NLT) Holy Bible, New Living Translation, copyright © 1996, 2004, 2015 by Tyndale House Foundation. Used by permission of Tyndale House Publishers Inc., Carol Stream, Illinois 60188. All rights reserved.
1 Everett Ferguson, Backgrounds of Early Christianity (2d ed.; Grand Rapids: Eerdmans, 1993) 64. All abbreviations of ancient literature in this essay are those used in the Oxford Classical Dictionary, 3d ed. (OCD).