'Pillars' in the Bible

and recognising the grace given to me, James and Cephas and John, who were conspicuous as being pillars, gave to me and Barnabas the right hands of fellowship, that we should go to the nations, and they to the circumcision;

And I saw another strong angel coming down out of the heaven, clothed with a cloud, and the rainbow upon his head, and his countenance as the sun, and his feet as pillars of fire,