Why do religious people attempt to persuade others of their beliefs? What are the current objections to the religious practice of proselytizing? Is proselytizing an ethically defensible practice? Are there kinds of proselytizing activities that are ethically questionable? Elmer John Thiessen responds to questions like these in an effort to provide a philosophical defense of proselytization, or religious persuasion, as an ethical practice. Thiessen examines and refutes current cultural and academic objections to religious proselytizing and offers a thorough ethics of evangelism.