1 Kings 7:21

And he set up the pillars in the porch of the temple: and he set up the right pillar, and called the name thereof Jachin: and he set up the left pillar, and called the name thereof Boaz.

Jachin: and ... Boaz, х Yaakiyn (H3199), whom God makes firm (Gesenius) - 'the firm' (Movers); Bo`az (H1162), alacrity (Gesenius) - 'the moving' or 'advancing' (Movers).] These names were symbolical, and indicated the strength and stability, not so much of the material temple, for they were destroyed along with it (Jeremiah 52:17), as of the spiritual kingdom of God, which was embodied in the temple.