'Pillars' in the Bible

Who is this that cometh out of the wilderness like pillars of smoke, perfumed with myrrh and frankincense, with all powders of the merchant?

He made the pillars thereof of silver, the bottom thereof of gold, the covering of it of purple, the midst thereof being paved with love, for the daughters of Jerusalem.

His legs are as pillars of marble, set upon sockets of fine gold: his countenance is as Lebanon, excellent as the cedars.