Targum Jonathan on Deuteronomy
For only Og king of Mathnan remained of the remnant of the giants who perished in the deluge. Behold, his bedstead was a bedstead of iron; behold, it is placed in the archive-house in Rabbath, of the Beni Ammon, nine-cubits its length, and four cubits its breadth, in the cubit of his own (stature).