Quran

 30:6

وَعْدَ اللَّهِ ۖ لَا يُخْلِفُ اللَّهُ وَعْدَهُ وَلَٰكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ ﴿٦﴾

6. The promise of Allah—Allah never breaks His promise, but most people do not know.