'Light' in the Bible

Then he said unto me, Hast thou seen this , O son of man? Is it a light thing to the house of Judah that they commit the abominations which they commit here? for they have filled the land with violence, and have turned again to provoke me to anger: and, lo, they put the branch to their nose.

In thee have they set light by father and mother; in the midst of thee have they dealt by oppression with the sojourner; in thee have they wronged the fatherless and the widow.

And when I shall extinguish thee, I will cover the heavens, and make the stars thereof dark; I will cover the sun with a cloud, and the moon shall not give its light.