This book investigates the historical development and theological significance of key observances within early Christianity. Paul F. Bradshaw, a respected scholar in liturgical studies, examines the origins of feasts, fasts, and the cyclical rhythm of the liturgical year. Drawing on a wide range of primary sources, the book traces how these practices evolved from their Jewish roots and adapted within the diverse communities of the early church. Bradshaw's analysis offers a comprehensive understanding of how these traditions shaped Christian identity and worship.

Paul F. Bradshaw's work is recognized for its scholarly rigor and detailed examination of early Christian liturgical practices. Scholars in the field appreciate its comprehensive approach to understanding the origins of feasts and fasts, providing a solid foundation for further research. The book is considered a valuable resource for those studying the history of Christian worship and its development.