Read 1 Corinthians 6:1-11. Chapter five argued that there should be differences evident in the conduct of believers compared to those in the world; there are different values; there are standards to which believers should hold one another accountable. As we enter chapter six, Paul continues that theme--but approaches it from a slightly different angle.
Disputes between believers were landing them in litigation before unbelieving judges. Notice the words that Paul uses to set this scene, "Dare he take it before the ungodly?" Twice repeating, "Do you not know... ?" Leaving no doubt, Paul admits, "I say this to shame you!" By verse 5 Paul has moved to a rhetorical question, no doubt with a hint of sarcasm, "Is it possible that there is nobody among you wise enough to judge?" If you recall the beginnings of this letter, the church at Corinth was a tremendously gifted body of believers, and wisdom was something they boasted. Of course there were people in their midst who could have served in this capacity! But...
But instead, one brother goes to law against another--and this in front of unbelievers.
You can feel the weight of that statement. This shouldn't be happening!
In the next couple of verses (7-8) Paul points to this behavior as evidence that the people in the church are defeated--given to their own selfishness and conceit. He asks them, "Wouldn't it have been better... ?" There's a greater cause than your own wants and desires. You're a part of a new economy now--a Kingdom economy.
Verses 9 - 11 contrast the behavior of the world with that of the church. These things are expected of those who are not followers of Christ--and notice it's a very similar list to that in chapter five. Here, however, Paul puts those behaviors in proper perspective: this is what some of you were. That sets up a huge but.
But you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God.
This but should put believers in a place of great humility--and thankfulness. Believer, you are different because Christ has done something in you. You are not an unbeliever anymore. You don't walk to the standards and ideals of this world anymore. You should have a higher regard for the name of the Lord.