When Moses and Elijah appeared in glory on a mountain, what were they talking about with Jesus? Luke gives us the one detail Matthew and Mark leave out — and it changes everything about how we read the Old Testament. In Luke 9:28-36, Jesus takes Peter, James, and John up a mountain and is transfigured before them. His face shines like the sun. His clothes flash with blinding light. And two figures appear — Moses and Elijah — speaking with Him about His coming death in Jerusalem. This moment isn't just a spectacular display of glory. It's the key that unlocks the entire Bible: Jesus is the hidden glory of the Old Testament and the revealed glory of the New. Why Moses? Why Elijah? What did Peter get wrong when he offered to build three tents? And why does the Father's voice from the cloud — "This is My beloved Son. Hear Him!" — answer the deepest questions every disciple must face? Join us as we walk through the Shadow & the Substance — a verse-by-verse exposition of Luke 9:18-36 — and discover why the transfiguration is far more than a mountaintop moment. It's the crossroads where the Law, the Prophets, and the Gospel converge in one Person.