Catechism of the Catholic Church §2588 — excerpt
The Psalter's many forms of prayer take shape both in the liturgy of the Temple and in the human heart. Whether hymns or prayers of lamentation or thanksgiving, whether individual or communal, whether royal chants, songs of pilgrimage or wisdom meditations, the Psalms are a…
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.