“Is the Lord among us or not?”
That is the central question asked by the Israelites there in Rephidim as they are camped out in the desert. They had traveled from the wilderness of Sin in stages to this place, as the Lord had commanded them. But now after putting down their belongings, they discover there’s no water to be found anywhere. It’s been a long day, and they are dying of thirst, so they begin to quarrel with Moses.