Divine Liturgy (Armenian: Սուրբ Պատարագ Surb Patarag; Bulgarian: Божествена литургия Bozhestvena liturgiya; Georgian: საღმრთო ლიტურგია saghmrto lit'urgia; Greek: Θεία Λειτουργία Theia Leitourgia; Romanian: Sfânta Liturghie; Russian: Божественная литургия Bozhestvennaya liturgiya; Serbian: Света Литургија or Sveta Liturgija) is the Eucharistic service of the Byzantine tradition of Christian liturgy. As such, it is used in the Eastern Orthodox and Eastern Catholic Churches. Armenian Christians, both of the Armenian Apostolic Church and of the Armenian Catholic Church, use the same term. Some Oriental Orthodox employ the term ""holy offering"" (Syriac: qurbana qadisha) for their Eucharistic liturgies instead. The term is sometimes applied also to Roman Rite Eucharistic liturgies, though the term Mass is more commonly used there.In Eastern traditions, those of the Eastern Catholic and Orthodox Churches, the Divine Liturgy is seen as transcending time, and the world. All believers are believed to be united in worship in the Kingdom of God along with departed Saints and the celestial Angels. To this end, everything in the Liturgy is seen as symbolic, yet also not just merely symbolic, but making the unseen reality manifest. According to Eastern tradition and belief, the Liturgy's roots go back to Jewish worship and the adaptation of Jewish worship by Early Christians. This can be seen in the first parts of the Liturgy that is termed, the ""Liturgy of the Word"" that includes reading of scriptures and the Sermon/Homily. The latter half was believed to be added based on the Last Supper and the first Eucharistic celebrations by Early Christians. Eastern Christians participating in the Liturgy also traditionally believe that the Eucharist is the central part of the service, as they believe it truly becomes the real Body and Blood of Christ, and through their partaking of it, they see themselves as together becoming the Body of Christ (that is, the Church). Each Liturgy has its differences from others, but most are very similar to each other with adaptations based on tradition, purpose, culture and theology.