'Light' in the Bible

Then he said to me, Have you seen [this], 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 behold, they put the branch to their nose.

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

When I shall extinguish you, I will cover the heavens, and make its stars dark; I will cover the sun with a cloud, and the moon shall not give its light.