'Light' in the Bible

Otherwise, as surely as the Lord, the God of Israel, lives -- he who has prevented me from harming you -- if you had not come so quickly to meet me, by morning's light not even one male belonging to Nabal would have remained alive!"

When Abigail went back to Nabal, he was holding a banquet in his house like that of the king. Nabal was having a good time and was very intoxicated. She told him absolutely nothing until morning's light.

So get up early in the morning along with the servants of your lord who have come with you. When you get up early in the morning, as soon as it is light enough to see, leave."