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Surah Aal-i-Imraan Ayah 90

سُورَةُ آلِ عِمۡرَانَ
The Family of Imraan 200 Ayahs Medinan Juz 34

Surah Aal-i-Imran discusses the family of Imran, including Maryam and Isa (Jesus). It was revealed partly in response to a Christian delegation from Najran and addresses theological discussions about the nature of Jesus.

90
إِنَّ ٱلَّذِینَ كَفَرُوا۟ بَعۡدَ إِیمَـٰنِهِمۡ ثُمَّ ٱزۡدَادُوا۟ كُفۡرࣰا لَّن تُقۡبَلَ تَوۡبَتُهُمۡ وَأُو۟لَـٰۤىِٕكَ هُمُ ٱلضَّاۤلُّونَ
English

Indeed, those who reject the message after their belief and then increase in disbelief - never will their [claimed] repentance be accepted, and they are the ones astray.