The Hebrews continue on their way and make camp in Rephidim. Unfortunately, there’s no water and, in customary fashion, the Hebrews start to whine. Moses the Middle Manager takes their complaints to God. God tells Moses to march in front of the Israelites smugly, making sure all the elders are watching, and strike a rock with his magic rod.
This causes the rock to split open and water to come out, satisfying the Hebrews for the time being. My study bible points out that “water lies below the limestone surface in the region of Sinai.” So we see another attempt to find a naturalistic explanation for a literal reading.
Battle with the Amalekites
There are Amalekites in them thar hills and Moses has a mind to exterminate. He sends Joshua in to fight them while he works his magic. The last time we saw the Amalekites, they were being conquered by the warring factions in Genesis 14.
While Joshua is on the ground fighting, Moses climbs a hill with Aaron and some guy named Hur. As long as he keeps his arms in the air, the Israelites are winning the battle; but if he lowers them, the Amalekites start to win. Predictably, he starts to get tired, so he takes a seat and Aaron and Hur hold his arms up for him until the Amalekites are defeated.
There’s no indication why Moses has to do this. If it was a test of his dedication, why should it continue to work if his friends are holding his hands up for him? Isn’t that cheating? It seems like God just decided to make Moses do a funny chicken dance for his own amusement.
Finally, “Joshua mowed down Am’alek and his people with the edge of the sword” (Exod. 17:13). Not that despite this violent imagery, the authors neglected to record the reasons for the battle.
Well, regardless, God tells Moses that he will “utterly blot out the remembrance of Am’alek from under heaven” (Exod. 17:14), which evidently hasn’t happened yet since, well, you’re reading all about them right now. Moses even anticipates this failure when he says that “the Lord will have war with Am’alek from generation to generation” (Exod. 17:16).
Not that I’m complaining. Genocide is a rather ugly thing and I’d really rather it not happen. But I do still think that follow-through is a desirable character trait in a deity.