Mark 9 - Jesus is revealed in glory during the Transfiguration, confirming His divine identity before Peter, James, and John. After coming down the mountain, He heals a boy possessed by an evil spirit, emphasizing the power of faith and prayer. Jesus then predicts His suffering, death, and resurrection for the second time, but His disciples still struggle to understand. When they argue about who is the greatest, Jesus teaches that true greatness comes through humility and serving others. He warns against causing others to stumble, calls His followers to deal seriously with sin, and closes by reminding them to be "salt" in the world—living with purity, faithfulness, and peace with one another.