'Brilliant' in the Bible

I saw an amber glow like a fire enclosed all around from his waist up. From his waist down I saw something that looked like fire. There was a brilliant light around it,

like the appearance of a rainbow in the clouds after the rain. This was the appearance of the surrounding brilliant light; it looked like the glory of the Lord. When I saw it, I threw myself face down, and I heard a voice speaking.

As he was praying, the appearance of his face was transformed, and his clothes became very bright, a brilliant white.