Stichologia

A Stichologia is a series of Psalm verses. In Vespers, the Stichologia consists of verses, beginning with "Set, O Lord, a watch...", from Psalms 140 and 141 that follow "Lord, I have cried" and precede the Kekregarion Stichera. In Orthros, the Stichologia consists of verses, beginning with "Praise Him, O sun and moon...", from Psalms 148 and 149 that follow "Let everything that hath breath" and precede the Praises Stichera.