1 Kings 7:15

For he cast two pillars of brass, eighteen cubits high apiece,.... In 2 Chronicles 3:15 they are said to be thirty five cubits high, which must be understood of the length or height of them both; and whereas that would allow but seventeen cubits and a half to a pillar, either the round number of eighteen is used, or half a cubit in each may be allowed, either for the base or pedestal into which they were put; or the chapiter at the top of them, into which they might go such a length, and so only what was seen is described:

and a line of twelve cubits did compass either of them about; that was the circumference of them, and therefore their diameter must be four cubits. Eupolemus, an Heathen writer n speaks of these pillars, but he makes the circuit of them to be but ten cubits; and says they were equal in height with the temple, and stood on the right and left, and were made of brass, and covered with gold, the thickness of a finger.

n Apud Euseb, Praepar. Evangel. l. 9. c. 34. p. 450.