1 sn Both Moses and Aaron had tasks to perform. Moses, being the “god” to Pharaoh, dealt directly with him and the Nile. He would strike the Nile. But Aaron, “his prophet,” would stretch out the staff over the rest of the waters of Egypt.
2 tn Heb “And he raised”; the referent (Moses) has been specified in the translation for clarity.
3 tn Gesenius calls the preposition on “staff” the בְּ (bet) instrumenti, used to introduce the object (GKC 380-81 §119.q). This construction provides a greater emphasis than an accusative.
4 tn The text could be rendered “in the sight of,” or simply “before,” but the literal idea of “before the eyes of” may stress how obvious the event was and how personally they were witnesses of it.
5 sn U. Cassuto (Exodus, 98) notes that the striking of the water was not a magical act. It signified two things: (1) the beginning of the sign, which was in accordance with God’s will, as Moses had previously announced, and (2) to symbolize actual “striking,” wherewith the Lord strikes Egypt and its gods (see v. 25).
6 sn There have been various attempts to explain the details of this plague or blow. One possible suggestion is that the plague turned the Nile into “blood,” but that it gradually turned back to its normal color and substance. However, the effects of the “blood” polluted the water so that dead fish and other contamination left it undrinkable. This would explain how the magicians could also do it – they would not have tried if all water was already turned to blood. It also explains why Pharaoh did not ask for the water to be turned back. This view was put forward by B. Schor; it is summarized by B. Jacob (Exodus, 258), who prefers the view of Rashi that the blow affected only water in use.
7 tn The prayer uses the Hiphil imperative of the verb “to know.” “Cause me to know” is “show me, reveal to me, teach or inform me.” Moses wanted to know more of God’s dealings with people, especially after all that has happened in the preceding chapter.
8 tn The imperfect tense of the verb “to know” with the vav follows the imperative of this root, and so this indicates the purpose clause (final imperfect): “in order that I may know you.” S. R. Driver summarizes it this way: that I may understand what your nature and character is, and shape my petitions accordingly, so that I may find grace in your sight, and my future prayers may be answered (Exodus, 361).
9 tn The purpose clause simply uses the imperfect, “that I may find.” But since he already has found favor in God’s eyes, he is clearly praying that it be so in the future as well as now.
10 tn The verb “see” (an imperative) is a request for God to acknowledge Israel as his people by providing the divine leadership needed. So his main appeal will be for the people and not himself. To underscore this, he repeats “see” the way the section opened.