Hitchhiker's Guide to Religion
Sacred Numbers
The Golden Ratio and Sacred Architecture

The Golden Ratio and Sacred Architecture

Phi (the golden ratio, approximately 1.618) appears when a line is divided so that the whole is to the larger part as the larger part is to the smaller. It is found in:

Sacred StructureConnection to Phi
Ark of the CovenantDimensions: 2.5 x 1.5 x 1.5 cubits (Exodus 25:10). The ratio 2.5/1.5 = 1.667, close to phi. The Ark’s proportions approximate the golden rectangle
Great Pyramid of GizaThe ratio of slant height to half-base = 1.618… (debated but measurably close)
ParthenonThe facade fits within a golden rectangle
Gothic cathedralsMedieval builders encoded phi in window proportions, nave dimensions, and rose windows
Noah’s Ark300 x 50 x 30 cubits (Gen 6:15). 300/50 = 6, 50/30 = 1.667 — again approximating phi