He cast two pillars of brass Of which see 2 Kings 25:16-17; Jeremiah 52:21. Of eighteen cubits high apiece It is said, 2 Chronicles 3:15, that these pillars were thirty-five cubits high, which relates to the height of both of them together without their pedestals, whereas the height of each is given here with its pedestal. A line of twelve cubits did compass either of them The diameter, therefore, was four cubits, which, considering the chapiter of five cubits, added to the height of each pillar, (2 Chronicles 3:15,) was only in due proportion to the height. In 2 Kings 25:17, indeed, it is said, that the height of the chapiter was only three cubits. But it must be observed, that the word chapiter may either be taken more largely for the whole, in which case, it was five cubits; or more strictly, either for the pommels, as they are called, 2 Chronicles 4:12; or for the cornice or crown, and so it was but three cubits, to which the pomegranates being added, made it four cubits, as it is 1 Kings 7:19, and the other work upon it took up one cubit more, which in all made five cubits.
Related Commentaries of 1 Kings 7:15
1 Kings 7:15-16
15 For he castg two pillars of brass, of eighteen cubits high apiece: and a line of twelve cubits did compass either of them about.
16 And he made two chapiters of molten brass, to set upon the tops of the pillars: the height of the one chapiter was five cubits, and the height of the other chapiter was five cubits: