Objectives: The Qur’an pays great attention to logical evidence, and it also addressed the misconceptions and fallacies of antagonists. This research aims to reveal one of these fallacies, which is the fallacy of cognitive confirmation bias in light of its espousal by the antagonists in the Qur’an, debunking their misconceptions, and underscoring the attention given to proof and evidence in Islam. The researcher relied on the analytical inductive approach to the subject, as it discussed the most prominent of the Qur’anic verses that addressed the fallacy of cognitive confirmation bias from the words of the antagonists, and studying them descriptively in a way that exposes the  error of their proof  and what they relied on in perpetuating their fallacy. The research concluded a brief definition from several previous definitions of cognitive confirmation bias, which is: (the tendency to information and the investigation of evidence that supports pre-existing beliefs and assumptions while ignoring what contradicts them), and that fallacies are patterns of wrong arguments but appear as valid arguments, and can be detected in the process of evaluating non-theoretical inference, and that they are not limited because they are a mental construction, like sensory means of debunking, and that the harm of cognitive confirmation bias is clear and influential on the beliefs and actions of the individual and society, as the research showed a lot the fallacies of the polytheists mentioned in the Glorious Qur'an, which has left no option - for a fair person who wants the truth - except to submit to this religion and embrace it.

The research also signify a scholarly addition in the aspect of studying evidence and logical arguments in light of Qur’anic verses, and highlighting and refuting the misconceptions and fallacies of antagonists.

Keywords: (Fallacy, confirmation bias, logical fallacies, antagonists, Al-Qur'an.(

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