Original Verse:
1st Kings Chapter 7 Verse 15For he fashioned the two pillars of brass, eighteen cubits high apiece: and a line of twelve cubits compassed either of them about.

Reference Verses:
Jeremiah Chapter 52 Verse 21And as for the pillars, the height of the one pillar was eighteen cubits; and a line of twelve cubits did compass it; and the thickness thereof was four fingers: it was hollow.
Jeremiah Chapter 27 Verse 19For thus saith Jehovah of hosts concerning the pillars, and concerning the sea, and concerning the bases, and concerning the residue of the vessels that are left in this city,
2nd Chronicles Chapter 3 Verse 15-17 [15] Also he made before the house two pillars of thirty and five cubits high, and the capital that was on the top of each of them was five cubits. [16] And he made chains in the oracle, and put [them] on the tops of the pillars; and he made a hundred pomegranates, and put them on the chains. [17] And he set up the pillars before the temple, one on the right hand, and the other on the left; and called the name of that on the right hand Jachin, and the name of that on the left Boaz.
2nd Kings Chapter 25 Verse 17The height of the one pillar was eighteen cubits, and a capital of brass was upon it; and the height of the capital was three cubits, with network and pomegranates upon the capital round about, all of brass: and like unto these had the second pillar with network.
Jeremiah Chapter 52 Verse 21-23 [21] And as for the pillars, the height of the one pillar was eighteen cubits; and a line of twelve cubits did compass it; and the thickness thereof was four fingers: it was hollow. [22] And a capital of brass was upon it; and the height of the one capital was five cubits, with network and pomegranates upon the capital round about, all of brass: and the second pillar also had like unto these, and pomegranates. [23] And there were ninety and six pomegranates on the sides; all the pomegranates were a hundred upon the network round about.