'Pillars' in the Bible

and when they perceived the grace that was given to me, James and Cephas and John, they who were reputed to be pillars, gave to me and Barnabas the right hand of fellowship, that we should go to the Gentiles, and they to the circumcision.

I saw a mighty angel coming down out of the sky, clothed with a cloud. A rainbow was on his head. His face was like the sun, and his feet like pillars of fire.