2 Chronicles 27:3

He built the high gate in the house of the Lord
See the note on ( 2 Kings 15:35 )

and on the wall of Ophel he built much;
which Kimchi interprets an high place; it was the eastern part of Mount Zion. Josephus ^F6 calls it Ophlas, and says it joined to the eastern porch of the temple; and some have thought the porch of the temple is meant; the Targum renders it a palace; it is a tradition of the Jews that it was the holy of holies ^F7.