And seven full days passed after the LORD had struck the Nile.
Water turned to blood strikes horror into the soul, but the justice runs deeper: Egypt made an idol of the Nile, and God justly turned their god into a curse. Whatever creature we worship instead of the Creator, the Lord will either remove from us or make bitter to our taste.
AI summary
Commenting on Exodus 7:14-25
And seven days were fulfilled,.... Or there were full seven days, a whole week: after that the Lord had smitten the river, and turned it into blood; here the miracle is ascribed to him; Moses and Aaron, and the rod they used, were only instruments, nothing short of almighty power could do such a miracle; it seems this lasted seven days at least.
And seven days were fulfilled - So we learn that this plague continued at least a whole week. The contention between Moses and Aaron and the magicians of Egypt has become famous throughout the world. Tradition in various countries has preserved not only the account, but also the names of the chief persons concerned in the opposition made by the Egyptians to these messengers of God.