Bridgeway Bible Commentary - Exodus 7:14-25
Nine plagues (7:14-10:29)The timing, intensity and extent of these plagues show clearly that they were sent by God. It also seems fairly clear that God used the physical characteristics of the Nile valley to produce them.When the first plague struck, it polluted all the water in the Nile and in the irrigation canals and reservoirs connected with it, resulting in all the fish dying. As the dead fish floated to the banks they would force the frogs out of the water, thereby producing the second... read more
Joseph Benson's Commentary of the Old and New Testaments - Exodus 7:20
Exodus 7:20. The waters in the river were turned into blood This was a plague justly inflicted on the Egyptians; for the river of Egypt was their idol; they and their land had so much benefit by that creature, that they served and worshipped it more than their Creator. In ancient times they annually even sacrificed a girl to it, at the opening of the canals, Univ. Hist., vol. 1. p. 413. Also they had stained the river with the blood of the Hebrew children, and now God made that river... read more