Psalm 149 is the 149th psalm of the Book of psalms.
It is one of the Laudate psalms and was sung as part of a trio of psalms during Lauds in the Roman rite.
With Psalm 148 and Psalm 150, Psalm was recited or sung daily during the solemn service of matins, according to the Rule of St. Benedict(530AD. In the Liturgy of the Hours, there is Psalm 149 service for Sunday Lauds in the first semaine. It is also used for feasts and solemnities week. In the Eucharistic liturgy, it is the Saturday after the Epiphany or before January 7 epiphany, and at Easter, the Monday of the sixth week.
Heinrich Schütz published a composition of its beginning in 1625 in his Cantiones sacrae as SWV 81, scored for four voices and basso continuo.