My main field of research is rabbinic Judaism and literature (Mishnah, Talmud and Midrash), its development in relation to Christianity and its influence on the denominations of modern Judaism. In particular, I am interested in the role that Jesus-oriented groups played for the emergence of rabbinic Judaism, and I am currently working on a project funded by the Swedish Research Council entitled “The role of Christianity in the emergence of rabbinic Judaism.”

My research areas also include Jewish-Christian relations in antiquity and ancient texts that combine belief in Jesus as the Messiah with a Jewish identity. These texts have previously been studied only in the context of the history of Christianity, where they have been regarded as heretical or “Jewish-Christian,” but a growing trend of scholarship now argues that they should be taken into account also when writing the history of Judaism and that they are important sources for our knowledge of non-rabbinic forms of Judaism. These texts have the potential to transform our understanding of both Judaism and Christianity in the first three hundred years of our era.