Before this, the book of Moses provided guidance and mercy. This too is a scripture that confirms, in Arabic, to warn those who transgressed, and to give good news to the righteous.
وَمِن قَبلِهِ كِتٰبُ موسىٰ إِمامًا وَرَحمَةً وَهٰذا كِتٰبٌ مُصَدِّقٌ لِسانًا عَرَبِيًّا لِيُنذِرَ الَّذينَ ظَلَموا وَبُشرىٰ لِلمُحسِنينَ
wa min qablihee kitaabu Moosaaa imaamanw-wa rahmah; wa haazaa Kitaabum musad diqul lisaanan ‘Arabiyyal liyunziral lazeena zalamoo wa bushraa lilmuhsineen