Featured Since God Himself Discriminates, why can't we also do that?

I think that Paul clearly states that we are to judge those who are within the church (and this is exactly what he does in 1 Corinthians 5). Unfortunately (and in my opinion substantiated only by personal experience) this is often an ignored doctrine.

 

So in other words, we can't tell people they sin and are sinners if they are not in the body? How do we then tell people they are in need of a Savior?

 

Yes, and those things should be addressed as well.

 

Within the church, yes. But only in context of Scripture. I believe that Scripture is the authority for discerning what is godly – and we are commanded to exercise discernment and discipline within the church. Gossip, homosexuality, fornication, drunkenness…all of these are wrong. When it comes to our own interpretation of what is wrong, then it gets sketchy at best (dancing because it may lead to fornication, having a drink because it may lead to drunkenness, rock music because it may lead to drunken fornication and a bad haircut…etc.).

 

IMHO, there is a difference in expounding on sin/demonstrating the need for a Savior and simply judging a world already condemned. I think that Jesus’ words to the woman at the well are a good example. He didn’t start off by calling her sin into question – or by proclaiming the city’s condemnation. She was actually aware of her sin. Jesus did not, however, simply ignore her sin either. It is perhaps good to remember that what defines the saved from the lost is not sin, but Christ - but repentance is essential and we cannot have repentance without godly sorrow over our sin. I think that this is actually a different issue as the OP stated “one of His people – but it would be an interesting thread to explore how we are to judge the world.

 

They absolutely have the right to say I'm a sinner - and I am. I know I am. I'm saved by the grace of God but I'm a sinner.