And the magicians of Egypt did so with their enchantments: and Pharaoh's heart was hardened, neither did he hearken unto them; as the LORD had said.
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George Leo Haydock
Like. They got a small quantity of water, either from the sea, from Gessen, (Wisdom xi. 5,) or by digging wells, ver. 24. (Calmet)
This plague lasted a full week, ver. 25. The water which they found in the mean time in the wells was mixed with blood. (Philo; St. Augustine, in Psalm lxxvii.) Wisdom xi. 7, thou gavest human blood to the unjust.