Ορθόδοξη, or Orthodox Christianity, is one of the oldest branches of Christianity, rooted in the teachings of Jesus Christ and the early Church. It emphasizes the importance of tradition, sacraments, and the authority of the Bible. The Orthodox Church is known for its rich liturgical life and the use of icons in worship. The Orthodox Church is organized into various national churches, such as the Greek Orthodox Church and the Russian Orthodox Church. Each church maintains its own traditions while adhering to the core beliefs of Orthodoxy. The Ecumenical Patriarch of Constantinople is considered the spiritual leader of the Orthodox community.