Exodus 7:20 And Moses and Aaron did so, as the Lord commanded; and he lifted up the rod, and smote the waters that were in the river, in the sight of Pharaoh, and in the sight of his servants; and all the waters that were in the river were turned to blood. 10 I MC VC

Exodus 7:25 And seven days were fulfilled, after that the Lord had smitten the river. 10 I MC VC