'Light' in the Bible

'Speak unto Aaron, and thou hast said unto him, In thy causing the lights to go up, over-against the face of the candlestick do the seven lights give light.'

and the people speak against God, and against Moses, 'Why hast thou brought us up out of Egypt to die in a wilderness? for there is no bread, and there is no water, and our soul hath been weary of this light bread.'