39:9Is he who worships devoutly during the watches of the night, prostrating himself and standing up, mindful of the Hereafter, and placing his hope in the mercy of his Lord? Say, “Are those who know and those who do not know equal?” Only those possessed of reason will remember.

39:18Those who listen to the Word, and follow the best of it. These are they whom God has guided. These are they who possess intellect.