 Al-Ghazâlî offers a brief yet very comprehensive examination of causality within the 17th discussion of his Incoherence of the Philosophers. The 17th discussion is not triggered by any opposition to causality. Rather it aims at forcing al-Ghazâlî’s adversaries, the falâsifa, to acknowledge that all prophetical miracles that are reported in the Qur’an are possible. If their possibility is acknowledged, a Muslim philosopher who accepts the authority of revelation must also admit that the prophets performed these miracles and that the narrative in revelation is truthful. Al-Ghazâlî divides the 17th discussion into four different sections. He presents three different “positions” (singl. maqâm) of his (various) opponents and addresses them one by one. His response to the “second position”, which is that of Avicenna, is further divided into two different “approaches” (singl. maslak). This four-fold division of the 17th discussion is crucial for its understanding. Al-Ghazâlî addresses different concepts about causality within the different discussions and develops not one, but at least two coherent responses.