Quran 3:179 from Surah Aal-i-Imraan on Divine Marvels.
مَّا كَانَ ٱللَّهُ لِيَذَرَ ٱلۡمُؤۡمِنِينَ عَلَىٰ مَآ أَنتُمۡ عَلَيۡهِ حَتَّىٰ يَمِيزَ ٱلۡخَبِيثَ مِنَ ٱلطَّيِّبِۗ وَمَا كَانَ ٱللَّهُ لِيُطۡلِعَكُمۡ عَلَى ٱلۡغَيۡبِ وَلَٰكِنَّ ٱللَّهَ يَجۡتَبِي مِن رُّسُلِهِۦ مَن يَشَآءُۖ فَـَٔامِنُواْ بِٱللَّهِ وَرُسُلِهِۦۚ وَإِن تُؤۡمِنُواْ وَتَتَّقُواْ فَلَكُمۡ أَجۡرٌ عَظِيمٞ
English translation: Not is Allah to leave the believers on what you (are) in [it] until He separates the evil from the good And not is Allah to inform you about the unseen [and] but Allah chooses from His Messengers whom He wills so believe in Allah and His Messengers and if you believe and fear (Allah) then for you (is a) reward great
Transliteration: ma kana al-lahu liyadhara al-mu'minina ala ma antum alayhi hatta yamiza al-khabitha mina al-tayibi wama kana al-lahu liyut'li'akum ala al-ghaybi walakinna al-laha yajtabi min rusulihi man yashau faaminu bil-lahi warusulihi wa-in tu'minu watattaqu falakum ajrun azimun