The Outer Court of Herod's Temple in Unger's Bible Dictionary

The outer court was surrounded with a high wall having several gates on its W side. It had porticoes running all around it, those on three of the sides having double and that on the S side having triple piazzas. These porticoes were covered with roofs of cedar supported on marble pillars, 25 cubits high, and were paved with mosaic work. This outer court, which could be frequented by Gentiles and unclean persons, had on its inner side and extending all around a rampart surrounded with a stone parapet, i.e., a mound 10 cubits broad, the top of which was reached by a flight of fourteen steps. This constituted the outer boundary of the inner Temple area (to deuteron hieron, Josephus Wars 5.5.2). Some distance back from the rampart was the wall by which the Temple and its inner courts were surrounded. On the outside this was 40 cubits high, while on the inside it was only 25, the level of the inner space being so much higher.

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