Jeremiah 52:21

21 As for the pillars, the height of the one pillar was eighteen cubits, its circumference was twelve cubits; it was hollow and its thickness was four fingers.

Jeremiah 52:21 Meaning and Commentary

Jeremiah 52:21

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.

Jeremiah 52:21 In-Context

19 The captain of the guard took away the small bowls also, the firepans, the basins, the pots, the lampstands, the ladles, and the bowls for libation, both those of gold and those of silver.
20 As for the two pillars, the one sea, the twelve bronze bulls that were under the sea, and the stands, which King Solomon had made for the house of the Lord, the bronze of all these vessels was beyond weighing.
21 As for the pillars, the height of the one pillar was eighteen cubits, its circumference was twelve cubits; it was hollow and its thickness was four fingers.
22 Upon it was a capital of bronze; the height of the capital was five cubits; latticework and pomegranates, all of bronze, encircled the top of the capital. And the second pillar had the same, with pomegranates.
23 There were ninety-six pomegranates on the sides; all the pomegranates encircling the latticework numbered one hundred.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.