Note 170 — Chapter III · THE EXODUS OUT OF EGYPT
Reading edition
Exod. vii. 19 contains an exaggeration which could easily be omitted without any injury to the sense of the narrative. The change of water in the river would affect the canals and such pools and ponds as were fed from the Nile, but nothing else. The river-water is not considered fit for drinking in the early days of the inundation. The green and slimy vegetation brought from the Equatorial regions renders it quite poisonous, and it is not until some days after it has become ‘red’ that it is again fit to drink.