Psalms 149:5 (KJV)

Let them praise his name in the dance: let them sing praises unto him with the timbrel and harp.

For the Lord taketh pleasure in his people: he will beautify the meek with salvation.

Let the saints be joyful in glory: let them sing aloud upon their beds.

Let the high praises of God be in their mouth, and a twoedged sword in their hand;

To execute vengeance upon the heathen, and punishments upon the people;