| Exodus 10:21 | And the Lord said to Moses: Stretch out thy hand towards heaven: and may there be darkness upon the land of Egypt so thick that it may be felt. 
 
 | Darkness upon the land of Egypt so thick that it may be felt. By means of the gross exhalations, which were to cause and accompany the darkness. (Challoner) --- Thus were the Egyptians punished for keeping the Hebrews in dark prisons. (Menochius) --- Philo says, even a lighted lamp or fire was extinguished. The Egyptians were affrighted with hideous spectres and evil angels. (Psalm 77:49; Wisdom 17:4.) |