THE DANGER OF UNBELIEF AND POLYTHEISM IN GOD IN THE LIGHT OF THE NOBLE QUR'ĀN/خطورة الكفر والشرك بالله تعالى في ضوء القرآن الكريم

The research aims to clarify the danger of infidelity and polytheism in God - the Mighty and Sublime - in the light of the noble Qur’ān, and to clarify synonyms of infidelity, and the way the noble Qur’ān deals with its subject, and to identify its divisions and provisions, and to mention the models of infidelity that stated in the noble Qur’ān in the context of arguing with the infidels and refuting their falsehood, with an explanation of the reasons for falling In polytheism, and explaining its consequences in this world and the hereafter. The inductive and deductive approach was used in this research u.  The research reached that the noble Qur’an pays great attention to combating infidelity, as there is no surah in the noble Qur’an that does not warn against unbelief and polytheism in God - the Mighty and Sublime - in different ways. The research also showed that infidelity is of many types. Some of it is a way out of the religion, and some of it is not a way out of the religion, but its owner is in great danger if he does not quit and repent from it before his death. The research clarified the means of eliminating infidelity and its causes, and clarifying its effects and severe consequences in this world and the hearafter.