distinguishing truth from falsehood

وَإِذْ ءَاتَيْنَا مُوسَى ٱلْكِتَـٰبَ وَٱلْفُرْقَانَ لَعَلَّكُمْ تَهْتَدُونَ

And [recall] when We gave Moses the Scripture and criterion that perhaps you would be guided.

هَلْ أُنَبِّئُكُمْ عَلَىٰ مَن تَنَزَّلُ ٱلشَّيَـٰطِينُ

Shall I inform you upon whom the devils descend?

وَلَقَدْ فَتَنَّا ٱلَّذِينَ مِن قَبْلِهِمْ ۖ فَلَيَعْلَمَنَّ ٱللَّهُ ٱلَّذِينَ صَدَقُوا۟ وَلَيَعْلَمَنَّ ٱلْكَـٰذِبِينَ

But We have certainly tried those before them, and Allāh will surely make evident those who are truthful, and He will surely make evident the liars.