Book of Psalms in Wikipedia
Psalms (Hebrew: Th'hilliym; Modern: Tehillim, תְהִלִּים, or
"praises") is a book of the Hebrew Bible. Taken together, its
150 sacred poems express virtually the full range of Israel's
faith. The word psalms is derived from the Greek ψαλμοί
(psalmoi), perhaps originally meaning "songs sung to a harp",
from psallein "play on a stringed instrument"....