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.

39:22What about someone whose heart God has opened to Islam, so that he follows a light from His Lord? Woe to those whose hearts are hardened against the mention of God. Those are in manifest error.

39:41We sent down upon you the Book for mankind in truth. He who follows guidance does so for the good of his soul. And he who strays in error does so to its detriment. You are not their overseer.

39:55And follow the best of what was revealed to you from your Lord, before the punishment comes upon you suddenly, while you are unaware.