One of the most important doctrines in Christianity is original sin. It has a key role in Christian theology and was the concern of many Christian thinkers during the history of Christianity. The debates and disputes of Christian theologians about it, especially in early history of Christianity lead to take a formal position about it by the Church. In sacred texts of Muslims, especially in Holy Qur’an many verses point out to disobedience of Adam and Eve too. So, many thinkers and commentators deal with the sin of Adam and Eve from the view of Holy Qur’an. Despite a general agreement between Christianity and Islam about the disobedience of Adam and Eve, there is, nevertheless, a main disagreement between them about the quantity and quality of the sin of Adam and Eve. this essay tries to show the similarities and differences as to the disobedience and sin of Adam and Eve through a comparative study which is based primarily on Islamic and Christian Scriptures.
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