Discovery BoxExodus 7:19 
Context7:19 Then the Lord said to Moses, “Tell Aaron, ‘Take your staff and stretch out your hand over Egypt’s waters – over their rivers, over their canals, 1 over their ponds, and over all their reservoirs 2 – so that it becomes 3 blood.’ There will be blood everywhere in 4 the land of Egypt, even in wooden and stone containers.”
1 tn Or “irrigation rivers” of the Nile.
2 sn The Hebrew term means “gathering,” i.e., wherever they gathered or collected waters, notably cisterns and reservoirs. This would naturally lead to the inclusion of both wooden and stone vessels – down to the smallest gatherings.
3 tn The imperfect tense with vav (ו) after the imperative indicates the purpose or result: “in order that they [the waters] be[come] blood.”
4 tn Or “in all.”
