Surah An-Nisa — Ayah 137 (4:137)
إِنَّ ٱلَّذِينَ ءَامَنُواْ ثُمَّ كَفَرُواْ ثُمَّ ءَامَنُواْ ثُمَّ كَفَرُواْ ثُمَّ ٱزۡدَادُواْ كُفۡرٗا لَّمۡ يَكُنِ ٱللَّهُ لِيَغۡفِرَ لَهُمۡ وَلَا لِيَهۡدِيَهُمۡ سَبِيلَۢا ١٣٧
English translation (Saheeh International)
Indeed, those who have believed then disbelieved, then believed then disbelieved, and then increased in disbelief - never will Allāh forgive them, nor will He guide them to a way.
Brief commentary
Those who repeatedly disbelieve after accepting faith – by entering into the faith, then leaving it, entering into it again, then leaving again, and so on – and then continue in disbelief until they die as disbelievers, Allah will not forgive their sins and nor will He bring them to the straight path that leads to Him.