In The Next Religion, Zangwill speculates on the transformations that traditional religious beliefs and institutions might undergo in response to scientific advancements, social changes, and the growing emphasis on individualism. He questions the relevance of established religious practices in the face of modernity and explores the possibility of new forms of spiritual expression that could emerge to meet the evolving needs of humanity.
The work reflects Zangwill's deep interest in cultural and religious identity, as well as his broader concerns about the social and moral implications of progress. Through a blend of narrative and philosophical discourse, Zangwill challenges readers to consider how religion might adapt to, or be redefined by, the changing world around it.