Isaiah 6:2 (Read all of Isaiah 6)
Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.
Isaiah 6:6 (Read all of Isaiah 6)
Then flew one of the seraphims unto me, having a live coal in his hand, which he had taken with the tongs from off the altar: