'Side chamber' in the Bible

The door for the lowest side chamber was on the right side of the temple. They went up a stairway to the middle chamber, and from the middle to the third.

And he measureth the wall of the house six cubits, and the breadth of the side-chamber four cubits, all round the house round about.

And the side-chambers are side-chamber by side-chamber, three and thirty times; and they are entering into the wall -- which the house hath for the side-chambers all round about -- to be taken hold of, and they are not taken hold of by the wall of the house.

The breadth of the wall that is to the side-chamber at the outside is five cubits; and that which is left is the place of the side-chambers that are to the house.

And the opening of the side-chamber is to the place left, one opening northward, and one opening southward, and the breadth of the place that is left is five cubits all round about.