Word by Word Analysis

هُوَ ٱلَّذِى بَعَثَ فِى ٱلْأُمِّيِّـۧنَ رَسُولًا مِّنْهُمْ يَتْلُوا۟ عَلَيْهِمْ ءَايَـٰتِهِۦ وَيُزَكِّيهِمْ وَيُعَلِّمُهُمُ ٱلْكِتَـٰبَ وَٱلْحِكْمَةَ وَإِن كَانُوا۟ مِن قَبْلُ لَفِى ضَلَـٰلٍ مُّبِينٍ 2

It is He who has sent among the unlettered [Arabs] a Messenger from themselves reciting to them His verses and purifying them and teaching them the Book [i.e., the Qur’ān] and wisdom [i.e., the sunnah] - although they were before in clear error -