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At midnight the LORD smote all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on his throne unto the firstborn of the captive that was in the dungeon; and all the firstborn of cattle. 12:29
Trivia: In Exodus 19:9, God said all the people would hear his voice when he talked to Moses. In that meeting, how did God say he would manifest himself?