⁹ I wrote to you in my letter not to associate with sexually immoral people— ¹⁰ not at all meaning the sexually immoral of this world, or the greedy and swindlers, or idolaters, since then you would need to go out of the world. ¹¹ But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler—not even to eat with such a one. ¹² For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge? ¹³ God judges those outside. “Purge the evil person from among you.” – 1 Corinthians 5:9-13 ESV

Evidently, Paul had sent another letter to the church in Corinth before this one. In it, he had warned them, “not to associate with sexually immoral people” (1 Corinthians 5:9 ESV). Yet, they had evidently not taken his advice. That one command makes their toleration of the sin within their midst all the more egregious. They had turned a blind eye to the individual in their fellowship who was having an incestuous affair with his stepmother. Rather than confront this man about his sin, they were willingly ignoring it and even bragging about their tolerance of it. And yet, according to these verses, the believers in Corinth were isolating themselves from the unbelievers in their city. They were practicing a form of isolationism, refusing to have anything to do with the lost, probably out of a sense of moral superiority.

But Paul wants to make himself perfectly clear. In his previous letter, he was in no way promoting a brand of monasticism or spiritual isolationism. To attempt to eliminate all contact with unbelieving sinners would require them to leave the world. It would be impossible for a believer to disassociate himself from all contact with the lost. In fact, to attempt to do so would go against Jesus’ call that we be salt and light in a world filled with moral decay and spiritual darkness. Jesus Himself was accused of associating with sinners. In fact, he went out of His way to spend time with those who, in His day, were deemed the worst of sinners.

If we adopt a policy of spiritual isolationism, it will be difficult to obey His command to “go into all the world and preach the Good News to everyone” (Mark 6:15 NLT). Had Paul determined to have nothing to do with the immoral, greedy, swindlers, and idolaters, no one in Corinth would have ever come to know Jesus Christ as their Savior. In the very next chapter, Paul reminds his audience of their former status as spiritual outcasts and moral misfits.

Don’t fool yourselves. Those who indulge in sexual sin, or who worship idols, or commit adultery, or are male prostitutes, or practice homosexuality, or are thieves, or greedy people, or drunkards, or are abusive, or cheat people — none of these will inherit the Kingdom of God. Some of you were once like that. But you were cleansed; you were made holy; you were made right with God by calling on the name of the Lord Jesus Christ and by the Spirit of our God. – 1 Corinthians 6:9-11 NLT

As Christians, it is so easy to judge the world and to view ourselves as morally superior because of our faith in Christ. But we should never forget that, before receiving God’s marvelous gift of grace, we were sinners, condemned, and unclean. We “lived in this world without God and without hope” (Ephesians 2:12 NLT). But God showed us mercy and graciously revealed to us the message of hope found in the death, burial, and resurrection of His Son. We were lost, but God sought us out and made us the undeserving sheep of His fold (Luke 15:1-7). We were spiritually blind, but God gave us sight. We were dead in our trespasses and sins, but God gave us new life through Christ.

We have no right to judge the lost of this world. We are not their moral superiors, and God did not choose us because we were somehow more deserving or had earned His favor. Before coming to faith in Christ, we were just as sinful and condemned.

It seems the Corinthians were quick to judge those outside their fellowship as moral misfits who were undeserving of their love and attention. But Paul clarifies that when he told them “not to associate with people who indulge in sexual sin” (1 Corinthians 5:9 NLT), he wasn’t talking about unbelievers. 

I meant that you are not to associate with anyone who claims to be a believer yet indulges in sexual sin, or is greedy, or worships idols, or is abusive, or is a drunkard, or cheats people. – 1 Corinthians 5:11 NLT 

Paul wanted them to turn their attention inward and focus on the moral condition of their own flock. He wanted them to know that they had a God-given responsibility to judge one another as believers. The Greek word Paul uses is κρίνω (krinō), and it carries a range of meanings. It can mean “to pronounce an opinion concerning right and wrong,” but it can also mean, “to pronounce judgment, to subject to censure” (“G2919 – krinō – Strong’s Greek Lexicon (KJV).” Blue Letter Bible).

There is a sense in which believers are to judge one another’s actions, but that judgment is not to be arbitrary or subjective. It is not left up to our own opinions or personal preferences. With the assistance of the Spirit of God, we are to use the Word of God to determine whether the behavior of a brother or sister in Christ is in keeping with the will of God. If we find that their behavior is out of step with God’s will, our first goal should be restoration. Paul told the Galatians, “Dear brothers and sisters, if another believer is overcome by some sin, you who are godly should gently and humbly help that person back onto the right path. And be careful not to fall into the same temptation yourself” (Galatians 6:1 NLT). James wrote something very similar.

My dear brothers and sisters, if someone among you wanders away from the truth and is brought back, you can be sure that whoever brings the sinner back will save that person from death and bring about the forgiveness of many sins. – James 5:19-20 NLT

If we “judge” or determine that a fellow believer is behaving sinfully, we have an obligation to lovingly confront them, but our goal is their repentance and restoration. In those cases where they refuse to repent, we have a responsibility to practice a form of tough love, out of concern for the well-being of the body of Christ. We have an obligation to remove the unrepentant from our fellowship so that their behavior does not become infectious and destroy the spiritual health of the flock. Paul warned the Corinthians, “not to associate with anyone who claims to be a believer yet indulges in sexual sin, or is greedy, or worships idols, or is abusive, or is a drunkard, or cheats people. Don’t even eat with such people” (1 Corinthians 5:11 NLT). Their lifestyle choices did not match their professed belief in Jesus. By their actions, they were bringing shame and dishonor to the name of God. They were a cancerous threat to the body of Christ, and the Corinthians’ refusal to remove them was allowing their sinful, disobedient mindset to infect others.

It is our willful tolerance of sin in the camp that causes the body of Christ to be weak and anemic. We are more than willing to judge unbelievers, pointing our fingers at their sinfulness and pridefully claiming the moral high ground. But when it comes to the blatant sins of those who claim to be Christ followers, we are more than willing to turn a blind eye and act as if nothing is wrong. That is exactly what the Corinthians had done. There was sin in their midst, and they had chosen to ignore it. Like so many of us today, they were probably saying, “Who am I to judge?” Or they defended their lack of judgment by using the words of Jesus.

“Do not judge others, and you will not be judged. For you will be treated as you treat others. The standard you use in judging is the standard by which you will be judged. And why worry about a speck in your friend’s eye when you have a log in your own?” – Matthew 7:1-3 NLT

But Jesus meant that we were not to pass judgment on those whom we have no authority to do so. The context of Jesus’ statement is hypocrisy — judging someone else when you have not effectively dealt with your own sin. He was referring to judging and condemning the “speck” of sin in someone else’s life while ignoring the “log” of sin in your own.

Judgment is appropriate and right when done with the spiritual well-being of the body of Christ in mind. We have a responsibility to protect the integrity of God’s household, removing those who reject our calls to repentance. The fact is, we all sin, but we are called to confess our sins and turn from them. When we do, God is faithful to forgive our sins and to cleanse us from all unrighteousness (1 John 1:9). But if we choose to remain unrepentant, our brothers and sisters in Christ have an obligation to step in and call us out.

As Paul so clearly states, “It isn’t my responsibility to judge outsiders, but it certainly is your responsibility to judge those inside the church who are sinning” (1 Corinthians 5:12 NLT). And the apostle Peter echoes Paul’s words when he writes, “For the time has come for judgment, and it must begin with God’s household” (1 Peter 4:17 NLT).

Father, this is a difficult passage because it not only sounds impossible to pull off, but it isn’t very appealing. Judging unbelievers is easy because their sins are so apparent, and when I find fault in them, it makes me feel better about myself. But You are far more concerned about the sin in my life and the sins I so easily tolerate within the body of Christ. Of all people, we have no excuse for our sinfulness because we have been forgiven, redeemed, and filled with the Holy Spirit. As Peter states, You have “given us everything we need for life and godliness” (1 Peter 1:3). Yet, we keep on sinning and then try to justify our actions as somehow normal and acceptable. We not only tolerate the sin in our own lives, but we turn a blind eye to the sins of others who claim to be Christ followers. Give us a growing distaste and dissatisfaction for the sin that so easily entangles us (Hebrews 12:1). Increase our desire to live set apart lives and to remove the sin from our camp so that we reflect the character of Christ to a lost and dying world. Amen

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.