Jeremiah 52:21

And he fashioned the two pillars of bronze; eighteen cubits was the height of one pillar, and a line of twelve cubits measured the circumference of both.

“For thus says Yahweh of hosts concerning the pillars, concerning the sea, concerning the stands, and concerning the rest of the vessels that are left in this city,

Now the bronze pillars which belonged to the house of Yahweh and the stands and the bronze sea, which were in the house of Yahweh, the Chaldeans shattered and carried all their bronze to Babylon.

The length of the porch was twenty cubits and the width eleven cubits; and at the stairway by which it was ascended were columns belonging to the side pillars, one on each side.