Exodus 7:17-21 NIV

17 This is what the LORD says: By this you will know that I am the LORD:1 With the staff that is in my hand I will strike the water of the Nile, and it will be changed into blood.2

References for Exodus 7:17

      18 The fish in the Nile will die, and the river will stink;3 the Egyptians will not be able to drink its water.' "4

      References for Exodus 7:18

          19 The LORD said to Moses, "Tell Aaron, 'Take your staff5 and stretch out your hand6 over the waters of Egypt--over the streams and canals, over the ponds and all the reservoirs'--and they will turn to blood. Blood will be everywhere in Egypt, even in the wooden buckets and stone jars."

          References for Exodus 7:19

          20 Moses and Aaron did just as the LORD had commanded.7 He raised his staff in the presence of Pharaoh and his officials and struck the water of the Nile,8 and all the water was changed into blood.9

          References for Exodus 7:20

          21 The fish in the Nile died, and the river smelled so bad that the Egyptians could not drink its water. Blood was everywhere in Egypt.