6:6Have they not considered how many generations We destroyed before them? We had established them on earth more firmly than We established you, and We sent the clouds pouring down abundant rain on them, and We made rivers flow beneath them. But We destroyed them for their sins, and established other civilizations after them.

6:7Had We sent down upon you a book on paper, and they had touched it with their hands, those who disbelieve would have said, “This is nothing but plain magic.”

6:8And they say, “Why was an angel not sent down to him.” Had We sent down an angel, the matter would have been settled, and they would not have been reprieved.

6:37And they say, “If only a sign could come down to him from his Lord.” Say, “God is Able to send down a sign, but most of them do not know.”

6:81And why should I fear those you associate with Him, and you do not fear associating others with God for which He sent down to you no authority? Which side is more entitled to security, if you are aware?”

6:99And it is He who sends down water from the sky. With it We produce vegetation of all kinds, from which We bring greenery, from which We produce grains in clusters. And palm-trees with hanging clusters, and vineyards, and olives, and pomegranates—similar and dissimilar. Watch their fruits as they grow and ripen. Surely in this are signs for people who believe.

6:111Even if We sent down the angels to them, and the dead spoke to them, and We gathered all things before them, they still would not believe, unless God wills; but most of them are ignorant.