And We divided them into twelve tribes, as nations; and We revealed to Musa when his people asked him for water: Strike the rock with your staff, so outnowed from it twelve springs; each tribe knew its drinking place; and We made the clouds to give shade over them and We sent to them manna and quails: Eat of the good things We have given you. And they did not do Us any harm, but they did injustice to their own souls.

These are announcements relating to the unseen which We reveal to you, you did not know them-- (neither) you nor your people-- before this; therefore be patient; surely the end is for those who guard (against evil).