And We divided them into twelve tribes, nation; and We inspired Moses, when his people asked him for water, saying, "Strike the rock with your staff!" and there gushed forth from it twelve springs, so that each tribe knew their drinking place. And We overshadowed them with the cloud; and sent down upon them the manna and the quails, saying, "Eat of the good things We have provided you with!"- They did not wrong Us but it was themselves they were wont to wrong.