Catholic-Orthodox Differences In Liturgy

• Wording

The Orthodox Divine Liturgy is longer, and tends to repeat itself in places.

The Divine Liturgy is chanted almost in entirety.

• Hymnography

The only hymns that change from day to day are those specific to a feast or Saint. Otherwise, the same hymns are sung week after week. This sounds monotonous, but in reality it causes the Liturgy to be "written on one's heart" like a favorite melody. Hymns are sung almost entirely by the choir though the people are encouraged to sing along if they wish to do so.

• Frequency

The Divine Liturgy is usually celebrated on a daily basis only at monasteries. It is impractical to celebrate a Divine Liturgy every day at a typical church. Preparation for a Divine Liturgy lasts at least an hour and a half before the liturgy begins. Therefore, Divine Liturgy is usually only celebrated on Sundays and special feast days. On the other hand, the Orthodox faithful attend many evening services at certain times of the year, such as Great Lent. An altar may only be used once per day to celebrate the Divine Liturgy, therefore Orthodox churches have only one service on Sunday. Vespers is celebrated on Saturday evenings.