In this Bible Blocks video Jesus is rejoining his disciples after being transfigured on the mountain. He finds them surrounded by a large crowd with a man who has a demon possessed son. Jesus casts out the demon and then explains to his disciples why they couldn't do the job - because of their unbelief. He says, "All things are possible to him who believes." This story is where Jesus speaks of mustard seed faith and moving mountains.

Find it in a Bible: Mark 9:14-29, Matthew 17 & Luke 9