How to confront sin from your pulpit?

The Bible says in 2 Timothy 3:16 that God’s word is useful for rebuking. It is important that preachers though not in a regular basis confront sin from the pulpit when ever the need rises. It’s a common factor however that preachers hardly confront sin today. Probably because of fear people will feel offended and leave the church. There are however some principles that I follow in confrontational preaching and most of the time the results have proved to be rewarding.