We're in the midst of the Muslim holy days of Ramadan, just past Western Christians' celebration of Easter, and looking forward to the Jewish Passover holidays in late April. We often refer to these traditions as the Abrahamic faiths—a reference to the childless man chosen by God in the Jewish Bible to be the father of a great nation, and who's an important figure in Judaism, Christianity, and Islam. Today, many who work for religious understanding use Abraham as a point of commonality between those in the three different religious traditions.

Not so fast, says Harvard University Jewish studies scholar, Jon Levenson, PhD ’75. He says that, a bit like the old joke about the United States, Great Britain, and the English language, Abraham is the common figure that separates Judaism, Christianity, and Islam. "It is surely the case that Jews, Christians, and Muslims have more in common than their adherents believe," he writes in his 2012 book, Inheriting Abraham, "but the patriarch is less useful to the end of inter-religious concord than many think."

So how does Abraham and his story play out differently in the three traditions? Why is it important to understand those differences? And if Abraham is not the fulcrum on which efforts for religious conciliation can revolve, what are the areas of commonality that can foster peaceful coexistence, particularly today, when it's needed most?