Ar-Rum - 30:6

وَعْدَ اللَّهِ لَا يُخْلِفُ اللَّهُ وَعْدَهُ وَلَكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ
[30:6]
(This is) Allah's promise! Allah will not fail His promise, but most people do not know.
(It is) the promise of Allah. Never does Allah depart from His promise: but most men understand not.
It is a promise of Allah. Allah faileth not His promise, but most of mankind know not.