VaEra Exile and Redemption (092) Class One. The plague of blood was static- being fully manifest from the first moment and not advancing over the course of the week it lasted. Still at week’s end it was completed- why? We’ll continue next time.  

VaEra Exile and Redemption (093) Class Two. Blood still advances over the week, as its education is completed not only over the course of the week it inflicted Egypt, but even the three weeks between plagues was a part of the education.