“I will build my Church”, Jesus announced upon Peter's confession. But as He went on to describe the foundation of that building project—how he “must suffer many things” and “be killed”—Peter cannot comprehend how anything can be built upon a rejected stone—upon Christ crucified. And so Jesus takes Peter on a journey to see the pattern on the mount.
“Build all things according to the Pattern”, the LORD told Moses. Sacred architecture must follow a revealed pattern because it's not merely the shape of a shelter, but the shape of the people, the shape of the cosmos, the shape of the heart.