Mankind Was Only One Religion Of Unity Of God

YUNUS (JONAH) : 19-20

10:19. Mankind was but one nation, but differed (later). Had it not been for a word that went forth before from thy Lord, their differences would have been settled between them.
10:20. They say: "Why is not a sign sent down to him from his Lord?" Say: "The Unseen is only for Allah (to know), then wait ye: I too will wait with you."