'Pillar' in the Bible

Now behold, I have made you today like a fortified city and like an iron pillar and like bronze walls against the whole land—against the [successive] kings of Judah, against its leaders, against its priests, and against the people of the land [giving you divine strength which no hostile power can overcome].

Concerning the pillars, the height of each pillar was eighteen cubits (twenty-seven feet), and a line [an ornamental molding] of twelve cubits (eighteen feet) went around its circumference; it was four fingers thick, and [the pillar was] hollow.

A capital of bronze was on [top of] it. The height of each capital was five cubits (seven and one-half feet), with a lattice-work and pomegranates around it, all of bronze. The second pillar also, with its pomegranates, was similar to these.