We divided them into twelve tribes, each a whole community. And when his people demanded drink of him, We revealed our Will to Moses, saying: ‘Strike the rock with your staff. Thereupon twelve springs gushed from the rock and each tribe knew its drinking-place. We caused the clouds to draw their shadow over them and sent down for them manna and quails, saying: ‘Eat of the wholesome things We have given you.’ Indeed they did Us no wrong, but they wronged themselves.