Revelation 1:14

And his head and his hair were white as white wool, white as snow; and his eyes were as a flame of fire.

This description of the white hair is a "deliberate reminiscence of Daniel 7:9, where it belongs to the Ancient of Days."[47] This application to Jesus Christ of the attributes of deity is a recurring phenomenon in Revelation. There are also a number of other reflections of the Book of Daniel, not only in this passage, but throughout the book.

His eyes were a flame of fire ... This indicates the omniscience of Christ, the ability to penetrate all disguises and to judge things as they are, not as they might pretend to be.