The body of revealed truth entrusted by Christ to the Apostles and, through them, to the entire Church is considered a core element of certain religious traditions. This encompasses both Sacred Scripture and Sacred Tradition, understood as a single source of divine revelation. It is the unchanging foundation upon which the Church builds its teachings and practices. For example, core beliefs regarding the nature of God, the divinity of Jesus Christ, and the importance of sacraments are derived from this foundational source.
The significance of this concept lies in its provision of a stable and authoritative point of reference for faith and doctrine. It ensures continuity with the teachings of the early Church and offers a safeguard against doctrinal innovation. Historically, it has served as a crucial element in maintaining unity and consistency within the believing community, providing a common understanding of fundamental religious principles.