'Brightness' in the Bible

You, O king, saw, and behold, a great image. This image, which was mighty, and whose brightness was excellent, stood before you; and its aspect was awesome.

At the same time my understanding returned to me; and for the glory of my kingdom, my majesty and brightness returned to me; and my counselors and my lords sought to me; and I was established in my kingdom, and excellent greatness was added to me.

Those who are wise shall shine as the brightness of the expanse; and those who turn many to righteousness as the stars forever and ever.