﴿ قُلْ أَرَءَيْتُم مَّا تَدْعُونَ مِن دُونِ ٱللَّهِ أَرُونِى مَاذَا خَلَقُوا۟ مِنَ ٱلْأَرْضِ أَمْ لَهُمْ شِرْكٌۭ فِى ٱلسَّمَٰوَٰتِ ۖ ٱئْتُونِى بِكِتَٰبٍۢ مِّن قَبْلِ هَٰذَآ أَوْ أَثَٰرَةٍۢ مِّنْ عِلْمٍ إِن كُنتُمْ صَٰدِقِينَ ﴾

“Say: “Have you [really] given thought to what it is that you invoke instead of God? Show me what these [beings or forces] have created anywhere on earth! Or had they, perchance, a share in [creating] the heavens? [If so,] bring me any divine writ pre­ceding this one, or any [other] vestige of knowledge - if what you claim is true!””

Knowledge is in fact of two types: revealed and established. The former reached man through the prophets, while the latter was established as such by means of research and experiments carried out by human beings. Neither of these two types of knowledge indicates that there is any being worthy of worship except the one and only God. When neither supports the concept of polytheism, how can a polytheistic credo be appropriate for man? One who seeks the support of any thing or any being other than God, will find himself abandoned by that thing or being in the Hereafter.