'Flame' in the Bible

His head and His hair were white like white wool, like snow; and His eyes were like a flame of fire.

“And to the angel of the church in Thyatira write:The Son of God, who has eyes like a flame of fire, and His feet are like burnished bronze, says this:

His eyes are a flame of fire, and on His head are many diadems; and He has a name written on Him which no one knows except Himself.