1 Corinthians 5 - Matthew Henry's Concise Commentary on the Bible

And directs their behaviour towards those guilty of scandalous crimes.

Christians are to avoid familiar converse with all who disgrace the Christian name. Such are only fit companions for their brethren in sin, and to such company they should be left, whenever it is possible to do so. Alas, that there are many called Christians, whose conversation is more dangerous than that of heathens!