Matthew 18:15 (NIV)
15 �If your brother or sister sins, go and point out their fault, just between the two of you. If they listen to you, you have won them over.

This verse reminds us to be sensitive in the way we confront people. First we should always go to them privately to point out their fault in love. If they listen and heed what you say then you have won them over to do what is right.

Toward the end of Harry Potter and the Sorcerer's Stone, there's a scene where Harry, Ron, and Hermione are about to break the rules and leave their dormitory after-hours to stop the bad guy from stealing a powerful magic artifact. Before they leave, though, they must face none other than Neville Longbottom, a rather bumbling, ineffective student in their class. "You're sneaking out again, aren't you?" Neville asks. "I won't let you. You'll get [our classmates] into trouble again." He fails to stop them, and Harry and his friends manage to stop the villain. But, surprisingly, at the end of the year banquet, headmaster Dumbledore gives the greatest honor to Neville. "It takes a great deal of bravery to stand up to our enemies," he explains, "but just as much to stand up to our friends."

Although Neville never becomes truly close with Harry, Ron, or Hermione, he still stumbled across two of the key traits of a friend or an accountability partner: the ability to recognize patterns of sinful behavior, and the courage to call the person out on them.

[Lisa Eldred, "More Than Single: Finding Purpose Beyond Porn," Covenant Eyes]