In the story of Achan in Joshua 7 the Lord teaches the Church a very hard lesson. Imagine, the disobedience of only ONE member of a family can put the entire nation of historic Israel at risk. It was so bad that God forsook them in the battle at Ai. Eventually, His whole household, including his animals were stoned to death.
Fathers and Mothers, take heed! Leaders of churches, take heed! The actions of ONE, can let God forsake the community. The Bible says that those with unrepentant immoral behaviour must be EXPELLED from the community, where God will judge the "wicked person" (1Corinthians 5:12)
Remember, God's Rule applies to both leaders and followers. Jesus said: "...If the blind lead the blind, both will fall into a pit.” (Matthew 15:14)