Thus, too, have We vouchsafed revelation unto Moses aforetime, and thereupon disputes arose about it. And [then, as now,] had it not been for a decree that had already gone forth from thy Sustainer, all would indeed have been decided between them [from the outset]. As it is, behold, they [who will not believe in this divine writ] are in grave doubt, amounting to suspicion, about what it portends.