'Light' in the Bible

Saul said, "Let us go down after the Philistines by night, and take spoil among them until the morning light, and let us not leave a man of them." They said, "Do whatever seems good to you." Then the priest said, "Let us draw near here to God."

Saul's servants spoke those words in the ears of David. David said, "Does it seems to you a light thing to be the king's son-in-law, since I am a poor man, and lightly esteemed?"

God do so to the enemies of David, and more also, if I leave of all that belongs to him by the morning light so much as one who urinates on a wall."

For indeed, as Yahweh, the God of Israel, lives, who has withheld me from hurting you, unless you had hurried and come to meet me, surely there wouldn't have been left to Nabal by the morning light so much as one who urinates on a wall."

Abigail came to Nabal; and behold, he held a feast in his house, like the feast of a king. Nabal's heart was merry within him, for he was very drunken. Therefore she told him nothing, less or more, until the morning light.

Therefore now rise up early in the morning with the servants of your lord who have come with you; and as soon as you are up early in the morning, and have light, depart."