John Bradshaw - My Brother's Keeper
The longest of the letters to the seven churches in Revelation is the one to Thyatira, in which Jesus states his displeasure with the church, allowing certain sins to go unchecked. Jesus believed it was the church's responsibility to take a stand and to take responsibility for what was being taught and practiced.
It's as though Jesus is answering a question asked back in the fourth chapter of Genesis; Cain asked God rather impudently, "Am I my brother's keeper?" Genesis 4:9. The answer evidently is YES.
I don't think this means the church should function as the thought police, but it does suggest that the church needs to stand for what God stands for and make that clear and encourage people to come up higher. God is clear that he has no love for sin; it's clear, too, that neither should we. I'm John Bradshaw, for It Is Written.