‏ Exodus 7:19

19Then the Lord said to Moses, “Say to Aaron, ‘Take your staff and aextend your hand over the waters of Egypt, over their rivers, over their
Or canals
streams, over their pools, and over all their reservoirs of water, so that they may become blood; and there will be blood through all the land of Egypt, both in containers of wood and in containers of stone.’”
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