The term Eastern Orthodox Bishop is also known as an Eparch, which is a six-letter word. An Eastern Orthodox Bishop is a senior bishop in the Eastern Orthodox Church, which is a branch of Christianity that follows the teachings of Jesus Christ and the traditions of the early Christian Church. Eastern Orthodox Bishops are responsible for overseeing the spiritual and administrative needs of their diocese, which is a geographical area of the church. They are also responsible for providing spiritual guidance to their congregation and for representing the church in ecumenical activities.