'Lower' in the Bible

And the pavement was by the side of the gates, answerable unto the length of the gates, even the lower pavement.

Then he measured the breadth from the forefront of the lower gate unto the forefront of the inner court without, a hundred cubits, both on the east and on the north.

Now the upper chambers were shorter; for the galleries took away from these, more than from the lower and the middlemost, in the building.

And from the bottom upon the ground to the lower ledge shall be two cubits, and the breadth one cubit; and from the lesser ledge to the greater ledge shall be four cubits, and the breadth a cubit.