Allah's statement إِنَّا أَوْحَيْنَا إِلَيْكَ (Verily, We have inspired you...) (4:163) emphasized the Prophet's Prophethood and refuted the idolators and People of the Scripture who denied him.Allah said,لَّـكِنِ اللّهُ يَشْهَدُ بِمَا أَنزَلَ إِلَيْكَBut Allah bears witness to that which He has sent down unto you,meaning, even if they deny, defy and disbelieve in you, O Muhammad, Allah testifies that you are His Messenger to whom He sent down His Book, the Glorious Qur'an that, لَاا يَأْتِيهِ الْبَاطِلُ مِن بَيْنِ يَدَيْهِ وَلَاا مِنْ خَلْفِهِتَنزِيلٌ مِّنْ حَكِيمٍ حَمِيدٍ (Falsehood cannot come to it from before it or behind it, (it is) sent down by the All-Wise, Worthy of all praise). (41:42) Allah then said,أَنزَلَهُ بِعِلْمِهِHe has sent it down with His knowledge, The knowledge of His that He willed His servants to have access to. Knowledge about the clear signs of guidance and truth, what Allah likes and is pleased with, what He dislikes and is displeased with, and knowledge of the Unseen, such as the past and the future. This also includes knowledge about His honorable attributes that no sent Messenger or illustrious angel can even know without Allah's leave.Similarly, Allah said,وَلَا يُحِيطُونَ بِشَيْءٍ مِّنْ عِلْمِهِ إِلاَّ بِمَا شَاءAnd they will never compass anything of His knowledge except that which He wills. (2:255)and,وَلَا يُحِيطُونَ بِهِ عِلْمًاbut they will never compass anything of His knowledge. (20:110) Allah's statement,وَالْمَليِكَةُ يَشْهَدُونَand the angels bear witness.to the truth of what you came with and what was revealed and sent down to you, along with Allah's testimony to the same.وَكَفَى بِاللّهِ شَهِيدًاAnd Allah is All-Sufficient as a Witness. Allah said,إِنَّ الَّذِينَ كَفَرُواْ وَصَدُّواْ عَن سَبِيلِ اللّهِ قَدْ ضَلُّواْ ضَلَلاً بَعِيدًا