confirms the truth in previous revelations

نَزَّلَ عَلَيْكَ ٱلْكِتَـٰبَ بِٱلْحَقِّ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ وَأَنزَلَ ٱلتَّوْرَىٰةَ وَٱلْإِنجِيلَ

Step by step, He has sent the Scripture down to you [Prophet] with the Truth, confirming what went before: He sent down the Torah and the Gospel

مِن قَبْلُ هُدًى لِّلنَّاسِ وَأَنزَلَ ٱلْفُرْقَانَ ۗ إِنَّ ٱلَّذِينَ كَفَرُوا۟ بِـَٔايَـٰتِ ٱللَّهِ لَهُمْ عَذَابٌ شَدِيدٌ ۗ وَٱللَّهُ عَزِيزٌ ذُو ٱنتِقَامٍ

earlier as a guide for people and He has sent down the distinction [between right and wrong]. Those who deny God’s revelations will suffer severe torment: God is almighty and capable of retribution.