In John Updike's book "Terrorist," he explores the idea that the Christian tradition of worship resembles a performance. This comparison suggests that people often view God as an entertainer, whose presence is appreciated only while he meets their expectations. When he fails to engage or sustain interest, it implies that he can be easily replaced by something or someone else, much like any act in a show. This perspective raises questions about the nature of faith and engagement with the divine.

Updike's commentary reflects a critical view of modern religious practices, where the sacred can seem transactional and contingent upon satisfaction. The metaphor highlights a disconnect between belief and genuine spiritual commitment, suggesting that many may treat God as a mere entertainer in their lives. This observation invites deeper reflection on the authenticity of one's faith in a world where distractions abound and the sacred can be treated lightly.