'Brightness' in the Bible

And I looked, and look! A storm wind [was] coming from the north, a great cloud, and fire flashing back and forth, and brightness around [and] {within it}, and from its midst [it was] like [the] outward appearance of amber stone from the midst of the fire.

and I saw, and look! A figure like [the] appearance of a man; from the appearance of his waist and below [was] fire, and from his waist and {upward} [was] like [the] appearance of brightness, like the {outward appearance of} amber.

And the glory of Yahweh rose up from on the cherub toward the threshold of the house, and the house was filled with the cloud, and the courtyard was filled with the brightness of the glory of Yahweh.