Surah 25. Al-Furqan, Ayah 31

Cf. {6: 112}, which refers in very similar terms to the evil forces (shayatin) against which every prophet has had to contend. The "glittering half-truths meant to delude the mind" spoken of in that verse are exemplified in the present passage, prophetically, by the deceptive argument that the Qur'an, having been enunciated fourteen centuries ago, must now be considered "obsolete".

It is the nature of sin to be hostile to truth and righteousness, but such hostility will not harm the righteous and need cause no misgiving because Allah will guide and help those who work in His cause. And what could he better or more effective than His guidance and help?