'Sun' in the Bible

The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the Lord come:

And now, behold, the hand of the Lord is upon thee, and thou shalt be blind, not seeing the sun for a season. And immediately there fell on him a mist and a darkness; and he went about seeking some to lead him by the hand.

At midday, O king, I saw in the way a light from heaven, above the brightness of the sun, shining round about me and them which journeyed with me.

And when neither sun nor stars in many days appeared, and no small tempest lay on us, all hope that we should be saved was then taken away.