What assurance from Jehovah brings us joy now? God gives us many reasons to be joyful. His promise of salvation is indeed a major source of happiness.
فَوَعْدُهُ بِٱلْخَلَاصِ هُوَ مِنْ أَهَمِّ ٱلْعَوَامِلِ ٱلَّتِي تَجْلُبُ لَنَا ٱلسَّعَادَةَ .‏