Mountains were very important to Matthew. When Jesus was tempted to worship the devil in exchange for all the kingdoms of the world, it happened on a mountain. It was good enough for Luke to have Jesus preaching on a nice level place, but when Jesus preaches essentially the same sermon in Matthew he does so on a mountain. That's why we call it the Sermon on the Mount. Jesus went to the mountain to pray. And today we have this story of the transfiguration, which happened on a mountain.

What is it about something happening on a mountain that adds such special significance? For Matthew, whose roots were in the Jewish tradition and who was writing to Jewish Christians, mountains were holy dwellings of God, places where God's presence was known and God's laws were given. Mountains became symbo…