'Couch' in the Bible

And he buildeth against the wall of the house a couch round about, even the walls of the house round about, of the temple and of the oracle, and maketh sides round about.

The lowest couch, five by the cubit is its breadth; and the middle, six by the cubit is its breadth; and the third, seven by the cubit is its breadth, for withdrawings he hath put to the house round about, without -- not to lay hold on the walls of the house.

And he buildeth the couch against all the house, five cubits is its height, and it taketh hold of the house by cedar-wood.