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A sacrifice of praise, and prayer for help.
For the Chief Musician. A Psalm of David.
9I have preached righteousness in the great congregation: lo, I have not refrained my lips, O LORD, thou knowest.
10I have not hid thy righteousness within my heart; I have declared thy faithfulness and thy salvation: I have not concealed thy lovingkindness and thy truth from the great congregation.
Psalms 40:9-10 (KJV)