Apostolic tradition refers to the teachings and practices that were passed down from the apostles, the early followers of Jesus Christ. This tradition encompasses both oral teachings and written texts that were not included in the Bible. It plays a significant role in the beliefs and practices of various Christian denominations, particularly in the Catholic Church and Eastern Orthodox Church. This tradition is considered essential for understanding the faith, as it provides context and interpretation for Scripture. It emphasizes the importance of continuity in teaching and the authority of the early church leaders, ensuring that the core messages of Christianity remain intact through generations.