Exodus 10:22

²² And Moses stretcheth out his hand towards the heavens, and there is darkness -- thick darkness in all the land of Egypt three days;

Arcana Coelestia #7718

7718. 'For three days' means a complete state, as just above in 7715.

Thanks to the Swedenborg Society for the permission to use this translation.

⁷ And in quenching thee I have covered the heavens, And have made black their stars, The sun with a cloud I do cover, And the moon causeth not its light to shine.