sentences:  The church has the rest of the liturgical ritual being rooted in Jewish Passover, Siddur, Seder, and synagogue services, including the singing of hymns (especially the Psalms) and reading from the Scriptures (Old and New Testament).The final uniformity of liturgical services became solidified after the church established a Biblical canon, being based on the Apostolic Constitutions and Clementine literature.In the Orthodox view, Bible represents those texts approved by the church for the purpose of conveying the most important parts of what it already believed.