The '''Divine Liturgy''' is the primary worship service of the [[Orthodox Church|Church]]. The most commonly celebrated forms of the Divine Liturgy are the [[Liturgy of St. John Chrysostom]], the [[Liturgy of St. Basil]], and the [[Liturgy of the Presanctified Gifts]], but there are others such as the [[Liturgy of St. James]]; the [[Liturgy of St. Mark]]; the [[Liturgy of St. Gregory the Great]] and the [[Liturgy of St. Tikhon of Moscow]]. The Divine Liturgy is a [[eucharist]]ic service. It contains two parts: the ''Liturgy of the [[Catechumen]]s'', sometimes called the ''Liturgy of the Word'', at which the [[Holy Scriptures|Scriptures]] are proclaimed and expounded, and the ''Liturgy of the Faithful'', sometimes called the ''Liturgy of the [[Eucharist]]'', in which the gifts of bread and wine are offered and consecrated. The Church teaches that the gifts truly become the body and blood of [[Jesus Christ]], but it has never dogmatized a particular formula for describing this transformation. The ''Prothesis'' (or ''[[proskomedia]]''), the service of preparing the holy gifts, can be considered a third part which precedes the beginning of the Liturgy proper.