Psalms, Volume 1 (College Press NIV Commentary)

Psalms was written in poetic form, the language of the soul. This expression of emotion ranges through all the human experience from praise and joy to lament and sorrow. By some estimations, nearly one third of the Old Testament is in some form of poetry that could be converted to song. Spanning nearly 700 years, several authors contributed to the book of Psalms, including David, Moses, Asaph and others.