Jews, Christians, and Muslims supposedly share a common religious heritage in the patriarch Abraham, and the idea that he should serve only as a source of unity among the three traditions has become widespread in both scholarly and popular circles. But in Inheriting Abraham, Jon Levenson reveals how the increasingly conventional notion of the three equally "Abrahamic" religions derives from a dangerous misunderstanding of key biblical and Qur'anic texts, fails to do full justice to any of the traditions, and is often biased against Judaism in subtle and pernicious ways.