i.e. Four cubits in height or breadth, whereas the wall was twenty cubits. Or, a fifth part of the door now mentioned. Or rather, five-square, having five sides and five angles, which is not incongruous nor unusual in buildings,
Related Commentaries of 1 Kings 6:31
1 Kings 6:31
31 And for the entering of the oracle he made doors of olive tree: the lintel and side posts were a fifth part of the wall.