'''Vespers''' (''εσπερινός'') is first service of the [[Daily Cycle]] of divine services celebrated in the [[Orthodox Church]]. Because the liturgical day begins at sunset, Vespers is traditionally served in the early evening. For many parishes, Vespers is the principal evening service.
== General Structure of Great Vespers ==
*Great Vespers opens with the [[priest]]'s exclamation ''Blessed is our God ...'' and the [[Trisagion Prayers]]. (Note: the Trisagion Prayers are omitted if Great Vespers immediately follows the service of the [[Ninth Hour]].)