The Hexapsalmos (or Six Psalms) are a group of six psalms composed of two triads, beginning with Psalm 3, 37, 52 and ending with Psalm 87, 102, 142, read during the Matins service. These are read after the dismissal of the Midnight Office at the beginning of the Matins service. Traditionally, they are read by the bishop or superior of the community, who may elect to delegate them to a reader. If Matins is aggregated with other services, the beginning of Matins may be performed quietly by the clergy during the Hexapsalmos.