1 Kings 6:2

The house — Properly so called, as distinct from all the walls and buildings which were adjoining to it; namely, the holy, and most holy place. Length — From east, to west. And this and the other measures may seem to belong to the inside from wall to wall. Cubits — Cubits of the sanctuary. Height — Namely, of the house: for the porch was one hundred and twenty cubits high, 2 Chronicles 3:4. So that all the measures compared each with other were harmonious. For sixty to twenty (the length to the breadth) is triple: or as three to one: and sixty to thirty (the length to the height) is double, or as two to one: and thirty to twenty (the height to the breadth) is one and an half, as three to two. Which are the proportions answering to the three great concords in music, commonly called, a twelfth, an eighth, and a fifth. Which therefore must needs be a graceful proportion to the eye, as that in music is graceful to the ear.