The poetic prayers, songs, and laments of the book of Psalms were recorded to teach worshipers how to praise God, as well as to lament and grieve. When undergoing times of agony or when words are not enough, the Psalms can express the painful emotions for us, as processing emotion helps us to move forward with difficult choices.
Much of the Psalms were attributed to David, including the prayer of Psalm 55—a lament about suffering violence at the hands of a loved one. Many victims of abuse find themselves alone and abandoned by family and friends who become impatient and exasperated by their ongoing struggle with loving their abuser. Praying through a Psalm may be an emotional refuge during such a painful time.