The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the Lord comes:
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Theophylact of Ochrid
AD 1107
the sun shall be darkened," instead of being blackened; not disappearing, but being overwhelmed by the light of Christ’s appearance, and so too will the stars and the moon. For what need is there for sensory light when the Sun of Righteousness has appeared and night is no more?