How powerful is our praise...?

Psalm 149:1-9 (HCSB)

"Hallelujah! Sing to the Lord a new song, His praise in the assembly of the godly. Let Israel celebrate its Maker; let the children of Zion rejoice in their King. Let them praise His name with dancing and make music to Him with tambourine and lyre. For Yahweh takes pleasure in His people; He adorns the humble with salvation. Let the godly celebrate in [triumphal] glory; let them shout for joy on their beds. Let the exaltation of God be in their mouths and a double-edged sword in their hands, inflicting vengeance on the nations and punishment on the peoples, binding their kings with chains and their dignitaries with iron shackles, carrying out the judgment decreed against them. This honor is for all His godly people. Hallelujah!"