Psalms

Psalms (from the Greek: Psalmoi) (originally meaning "songs sung to a harp", from psallein "play on a stringed instrument", Ψαλμοί; Hebrew: Tehilim, תהילים) is a book of the Hebrew Bible, Tanakh or Old Testament.

In the Hebrew Bible, the Psalms are counted among the "Writings" or Ketuvim (one of the three main sections into which the books are grouped).

The Book of Psalms, especially if printed separately and set for singing or chanting, is also called the Psalter.

Composition of the Book of Psalms

The Book of Psalms is divided into 150 Psalms, each of which constitutes a religious song or chant, though one or two are atypically long and may constitute a set of related chants. When the Bible was divided into chapters, each Psalm was assigned its own chapter. Psalms are sometimes referenced as chapters, despite that chapter assignments postdate the initial composition of the "canonical" Psalms by at least 1,500 years.

The organization and numbering of the Psalms differs slightly between the (Masoretic) Hebrew and the (Septuagint) Greek manuscripts

More...