CCC 2585 From the time of David to the coming of the Messiah texts appearing in these sacred books show a deepening in prayer for oneself and in prayer for others.1 Thus the psalms were gradually collected into the five books of the Psalter (or “Praises”), the masterwork of prayer in the Old Testament.
1 Ezra 9:6-15; Neh 1:4-11; Jon 2:3-10; Tob 3:11-16; Jdt 9:2-14.