1 Kings 6:31

And for the entering of the oracle, he made doors [which hung on golden hinges ( 1 Kings 7:50 ] of olive tree [see on 1 Kings 7:23 )], the lintel and side posts were a fifth part of the wall. [The meaning of the Hebrew words has been much disputed. See Gesen. Thesaur, 1. pp. 43-45. Gesen. himself interprets as A.V.: crepido cum postibus erat quinta pars, i.e; quintam parietis partem occupabat. The Rabbins: the "entablature with side posts and threshold formed a pentagon." But a pentagonal doorway is without example in Eastern architecture. Thenius: "the strength ( אַיִל is generally taken as an architectural term = crepido portae, or entablature) of the posts was a fifth." Rawlinson: "the lintel was one-fifth of wall, and each door post one-fifth of its height;" in which case the doorway would of course be a square of four cubits. But perhaps the rendering of A.V. (with which Keil and Bähr also agree) is more natural. The meaning, consequently, would be that the entrance to the oracle, inclusive of the side posts which helped to form it, occupied one-fifth of the extent of the cedar partition. The entrance to the house ( 1 Kings 6:33 ) was one-fourth of the wall of the house.]