Dr. Barry Dov Walfish

Dr. Barry Dov Walfish

University of Toronto

Dr. Barry Dov Walfish was the Judaica Bibliographer and Curator at the University of Toronto Libraries until his retirement in 2017. He holds a Ph.D. in Medieval Jewish Intellectual History from the University of Toronto. He is the author of Esther in Medieval Garb, Bibliographia Karaitica, and The Way of Lovers (with Sara Japhet) and is the main Judaism editor for De Gruyter’s Encyclopedia of the Bible and its Reception.

Last Updated: November 10, 2026

Articles by Author

When Was the Rainbow Created? The Bible Meets Science

When Was the Rainbow Created? The Bible Meets Science

After the flood, God tells Noah that He set His bow in the clouds to serve as a sign of His covenant with humankind. But if the rainbow is a natural phenomenon, as Aristotle claimed, did it not exist before the flood? This scientific problem offers a window into how medieval commentators sought to reconcile the science of their time with the Bible.
Behind the Mockery: Jewish Responses to Jesus’ Crucifixion and Resurrection

Behind the Mockery: Jewish Responses to Jesus’ Crucifixion and Resurrection

The products of a period in which Judaism was considered to have been superseded by Christianity and Jews were treated as inferiors, the Talmud and Toledot Yeshu literature developed a biting, farcical retelling of Jesus’ story, which, at the same time, reveals the Jewish struggle to explain his massive impact on world religion. Yet, medieval rabbis also responded to Jesus’ death in a serious way, noting that ultimately, things turned out for the best: Jesus always planned to be crucified, and Jesus asked God to forgive everyone involved.   
Queen Esther in Jewish Art: From Antiquity to Modern Times

Queen Esther in Jewish Art: From Antiquity to Modern Times

From a shadowed queen in the third-century synagogue frescoes of Dura-Europos to a defiant heroine recast in the shadow of the Holocaust, Esther’s image has never stood still. Across centuries of Jewish art—medieval manuscripts, early modern megillot, linocuts, mosaics, and mystical modern paintings—artists have reshaped her image from demure beauty to decisive leader. Each generation paints the Esther it needs.
Song of Songs: Four Approaches to Love in Commentary and Music

Song of Songs: Four Approaches to Love in Commentary and Music

Known by the acronym Pardes, four approaches—peshat, the literal, remez, the philosophical-allegorical, derash, the midrashic-allegorical, and sod, the mystical—can be found not only in commentaries on the Song of Songs but also in a variety of musical settings.
The Defamation of Orpah

The Defamation of Orpah

Chesed, lovingkindness, is a major theme in the book of Ruth. And yet, the rabbis have little sympathy for Orpah. To the contrary!
The Denigration of Esau

The Denigration of Esau

Why does Esau in Jewish tradition come to be known as עשו הרשע “Esau the Wicked”? The answer has to do with the history of Judea’s relationship with Esau’s eponymous descendants, the Edomites, and the connection Jews made between them, Rome, and Christianity. The negative view of Esau is expressed nowhere more forcefully than in Rashi’s commentary.
Song of Songs: The Emergence of Peshat Interpretation

Song of Songs: The Emergence of Peshat Interpretation

The Song of Songs is a collection of love poetry. The Rabbis read it as an allegory of the relationship between God and the Jewish people. Only in the Middle Ages, in Spain and Northern France, did scholars begin to pay attention to the plain (Peshat) meaning of the text. Some went as far as dropping the allegory altogether and treating it as love poetry, as it was originally intended.