Jonathan Cahn, born in 1959, is an American author and Messianic rabbi recognized for his first novel, The Harbinger. He leads the Beth Israel Worship Center in Wayne, New Jersey, a ministry that integrates contemporary American political discourse with conservative Christian theology and biblical interpretations. Cahn's approach has drawn attention and controversy from various religious and secular perspectives.

His personal journey led him to convert to Messianic Judaism at age 20 following a near-death experience, after being raised in a Jewish household. Cahn also founded and presides over "Hope of the World Ministries," an international organization dedicated to evangelism and humanitarian aid. He is married and has three children.

Cahn's ministry centers on eschatology, or end-times prophecy, often drawing parallels between historical events and current American society. He has expressed concerns about the nation's direction, citing issues such as abortion, LGBTQ+ rights, and the perceived decline of religion's public influence. He has also publicly associated President Donald Trump with biblical figures and made critical remarks about President Joe Biden's administration.

Jonathan Cahn leads the Beth Israel Worship Center, a congregation whose services are characterized by a focus on Jesus as the Savior. The congregation relocated to Wayne, New Jersey, in 2008. Their presence in the area was met with apprehension by local Jewish leadership, as Messianic Judaism is broadly viewed by mainstream Christian denominations and all Jewish movements as a form of Evangelical Christianity often engaging in proselytization towards Jewish communities. Cahn stated that his congregation did not intend to specifically target the Jewish community but welcomed all individuals. His ministry frequently emphasizes themes of end-times prophecy, linking current events in the United States to biblical predictions. He has articulated views that the U.S. is on an incorrect trajectory due to societal trends like abortion, the advancement of gay rights, and a perceived erosion of religion's public standing. Cahn has notably portrayed former President Donald Trump as a significant, biblically resonant figure and has been critical of President Joe Biden's administration, particularly regarding cultural policies.

Cahn gained significant recognition with his 2011 debut novel, The Harbinger, which draws parallels between the United States' experience, particularly the September 11 attacks, and the ancient history of Israel and its subsequent downfall. This initial success was followed by several other books, including The Mystery of the Shemitah, The Book of Mysteries, The Paradigm, The Oracle, The Harbinger II: The Return, The Return of the Gods, The Josiah Manifesto, The Dragon's Prophecy, and The Avatar. Several of his works have achieved bestseller status, with The Paradigm reaching #5 on The New York Times Best Seller list. The Oracle: Jubilean Mysteries Unveiled, published in 2019, topped both Publishers Weekly and Amazon charts and also appeared on The New York Times Best Seller list in multiple categories. His literary output often explores themes of biblical prophecy, historical cycles, and their perceived relevance to contemporary global and national events, particularly within an American context.