I also like Ecc and Job. But you can't deny the power of the Psalms.

"Sing unto him, sing psalms unto him, talk ye of all his wondrous works."

The Book of Psalms is about praise.

"Blessed be the Lord God of Israel from everlasting to everlasting: and let all the people say, Amen. Praise ye the LORD."

"Let every thing that hath breath praise the LORD. Praise ye the LORD."