Abraham’s willingness to sacrifice his son, the “binding of Isaac”, already in early Church tradition was discovered as the prototype of the Christian passion story, Abraham figuring as the “type” of God Father, Isaac as the “type” of Christ. The Biblical story which is told in a strongly emotional tone, thus was to find its continuation in a passion story loaded with triggers of emotion. What is less well known is that the story has equally strongly affected the emergence of the third monotheist religion, Islam. Its formative impact on the Qur’anic concepts of sacrifice on the one hand and on the critique of genealogy as a source of authority on the other has until now not been exhaustingly studied. The paper attempts to locate the “passion story of Abraham’s sacrifice” within the Qur’anic development which finally came to rank Abraham as the most significant model of a monotheist believer, a precursor of the Prophet Muhammad. Here, the figure of Abraham at the same time features as a counter-model to the image of Abraham established in Christianity. To blur the image of the emotionally loaded prototype of God Father in the Christian passion story, the Qur’anic Abraham was required to defy any sacrificial pathos (generated by the “un-natural” preference of loyalty toward God over his paternal love) and to perform an act of mere faithfulness – being exculpated from the monstrosity of child sacrifice thanks to his son’s agreement to participate in the act.