Quran 35:42 from Surah Faatir on Divine Marvels.
وَأَقۡسَمُواْ بِٱللَّهِ جَهۡدَ أَيۡمَٰنِهِمۡ لَئِن جَآءَهُمۡ نَذِيرٞ لَّيَكُونُنَّ أَهۡدَىٰ مِنۡ إِحۡدَى ٱلۡأُمَمِۖ فَلَمَّا جَآءَهُمۡ نَذِيرٞ مَّا زَادَهُمۡ إِلَّا نُفُورًا
English translation: And they swore by Allah (the) strongest (of) their oaths that if came to them a warner surely they would be more guided than any (of) the nations But when came to them a warner not it increased them but (in) aversion
Transliteration: wa-aqsamu bil-lahi jahda aymanihim la-in jaahum nadhirun layakununna ahda min ih'da al-umami falamma jaahum nadhirun ma zadahum illa nufuran