This made me think of Bonhoeffer's quote below (Hat Tip to Zach Nielsen):
‘Nothing can be more cruel than that leniency which abandons others to their sin. Nothing can be more compassionate than that severe reprimand which calls another Christian in one’s community back from the path of sin.’ (105)
- Dietrich Bonhoeffer, Life Together: The Classic Exploration of Faith in Community.
Not too long ago, I preached on Nathan's confrontation with David in 2 Sam. 12 here. It was a hard sermon to preach.