51 I also received a report of scandalous sex within your church family, a kind that wouldn't be tolerated even outside the church: One of your men is sleeping with his stepmother. 2 And you're so above it all that it doesn't even faze you! Shouldn't this break your hearts? Shouldn't it bring you to your knees in tears? Shouldn't this person and his conduct be confronted and dealt with? 3 I'll tell you what I would do. Even though I'm not there in person, consider me right there with you, because I can fully see what's going on. I'm telling you that this is wrong. You must not simply look the other way and hope it goes away on its own. Bring it out in the open and deal with it in the authority of Jesus our Master. 4 Assemble the community - I'll be present in spirit with you and our Master Jesus will be present in power. 5 Hold this man's conduct up to public scrutiny. Let him defend it if he can! But if he can't, then out with him! It will be totally devastating to him, of course, and embarrassing to you. But better devastation and embarrassment than damnation. You want him on his feet and forgiven before the Master on the Day of Judgment. 6 Your flip and callous arrogance in these things bothers me. You pass it off as a small thing, but it's anything but that. Yeast, too, is a "small thing," but it works its way through a whole batch of bread dough pretty fast.
Matthew Henry's Commentary on 1 Corinthians 5:1-6
Commentary on 1 Corinthians 5:1-8
(Read 1 Corinthians 5:1-8)
The apostle notices a flagrant abuse, winked at by the Corinthians. Party spirit, and a false notion of Christian liberty, seem to have saved the offender from censure. Grievous indeed is it that crimes should sometimes be committed by professors of the gospel, of which even heathens would be ashamed. Spiritual pride and false doctrines tend to bring in, and to spread such scandals. How dreadful the effects of sin! The devil reigns where Christ does not. And a man is in his kingdom, and under his power, when not in Christ. The bad example of a man of influence is very mischievous; it spreads far and wide. Corrupt principles and examples, if not corrected, would hurt the whole church. Believers must have new hearts, and lead new lives. Their common conversation and religious deeds must be holy. So far is the sacrifice of Christ our Passover for us, from rendering personal and public holiness unnecessary, that it furnishes powerful reasons and motives for it. Without holiness we can neither live by faith in him, nor join in his ordinances with comfort and profit.