By the cubit and an hand breadth. — The sense will be more clearly conveyed by reading, “each being a cubit and a hand-breadth,” i.e., each of the six cubits which made up the reed was an ordinary cubit and a hand-breadth more. It is difficult or impossible to fix with precision the length of the cubit of Scripture, more especially as the value of the measure appears to have changed in the course of ages. In 2 Chronicles 3:3 the measurements of Solomon’s Temple are given “by cubits after the first [or ancient] measure.” It appears, therefore, that the cubit in common use at the time of the compilation of that book (after the return from the captivity) was different from the standard Mosaic cubit. Ezekiel evidently intends to use the latter in his Temple measurements, and therefore adds “an hand breadth” to the common cubit. Different writers vary in their estimate of the length of the measure thus obtained from eighteen to twenty-four inches. By considering it twenty inches we shall have a convenient number for use, and cannot be far wrong. The “reed of six cubits” was therefore about ten feet long.
The breadth of the building — i.e., the thickness of the wall surrounding the court. The length of this wall is not given until Ezekiel 40:47. The thickness and height are made equal, evidently for the sake of the symmetry of the measures. (Comp. Revelation 21:16.)