This is one of my favorites! How the parable of mustard seed in Matthew 13 has enormous importance for the gospel message. Jesus casts out a demon from a boy in Matthew 17 and tells the apostles to have faith as a mustard seed. But why? In Mark 11, Christ uses the image of having faith to cast mountains into the sea. How the mustard seed provides the answer. Also, quotations from Psalm 48, Isaiah 2, and Daniel 2.