Catechism of the Catholic Church

Certain constant characteristics appear throughout the Psalms: simplicity and spontaneity of prayer; the desire for God himself through and with all that is good in his creation; the distraught situation of the believer who, in his preferential love for the Lord, is exposed to a host of enemies and temptations, but who waits upon what the faithful God will do, in the certitude of his love and in submission to his will. The prayer of the psalms is always sustained by praise; that is why the title of this collection as handed down to us is so fitting: "The Praises." Collected for the assembly's worship, the Psalter both sounds the call to prayer and sings the response to that call: Hallelu-Yah! ("Alleluia"), "Praise the Lord!" (304) > What is more pleasing than a psalm? David expresses it well: "Praise the Lord, for a psalm is good: let there be praise of our God with gladness and grace!" Yes, a psalm is a blessing on the lips of the people, praise of God, the assembly's homage, a general acclamation, a word that speaks for all, the voice of the Church, a confession of faith in song.