“Psalms” comes from the Greek word meaning a song sung to a stringed instrument. The book is also called the Psalter. The Hebrew title, Tehillim, means “praises.” Every Psalm except Psalm 88 contains praise. (By the way, when you refer to an individual psalm, use the singular, as in Psalm 23 ; when you refer to the whole book or to more than one psalm, use the plural, as in Psalms 23 and 24, or the Book of Psalms.) While we no longer know the tunes, we need to remember that the Psalms were set to music.