Amos 8:9

9And it will be in that day, says the Lord God, that the sun will decline at midday, and I will cause the earth to become dark on the day of light.
8:9Here is a reference to the Three Days of Darkness. This event seems to be mentioned often in the Old Testament, probably because of its foreshadowing during the plagues that God sent on Egypt through Moses. It is called the day of light, even though it is darkness, because the faithful will have light despite the darkness and because this terror of darkness will open the eyes of the world to the light.(Conte)
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