Among the Bedouin Arabs who dwell around you there are hypocrites, and among the people of Madinah (too) there are such as have grown more artful and insidious in hypocrisy: you (O Messenger) do not know them (unless We inform you of them). We know them all (and the threat they pose). We will punish them doubly, and then they will be returned to a mighty punishment (in the Hereafter).