21 As for the pillars, the height of the one pillar was eighteen cubits; and a line of twelve cubits did compass it; and its thickness was four fingers: it was hollow.
*Minor differences ignored. Grouped by changes, with first version listed as example.
The fillet means a measuring line; the pillars were 12 cubits, i. e., 18 feet, in circumference, and thus the diameter would be 5 feet 9 inches. As the brass was four fingers, i. e., scarcely four inches thick, the hollow center would be more than five feet in diameter.
And concerning the pillars, the height of one pillar was eighteen cubits,.... As in 1-Kings 7:15; said to be thirty five, 2-Chronicles 3:15; of the reconciliation of which; see Gill on 2-Chronicles 3:15,
and a fillet of twelve cubits did compass it; a thread or line of that measure encompassed each of the pillars, 1-Kings 7:15;
and the thickness thereof was four fingers; either of the pillar, or the fillet about it; that is, the brass of it was four fingers thick:
it was hollow; that is, the pillar was hollow.
eighteen cubits--but in 2-Chronicles 3:15, it is "thirty-five cubits." The discrepancy is thus removed. Each pillar was eighteen common cubits. The two together, deducting the base, were thirty-five, as stated in 2-Chronicles 3:15 [GROTIUS]. Other ways (for example, by reference to the difference between the common and the sacred cubit) are proposed: though we are not able positively to decide now which is the true way, at least those proposed do show that the discrepancies are not irreconcilable.
*More commentary available at chapter level.