Psalm 40:9 in the King James Version
I have preached righteousness in the great congregation: lo, I have not refrained my lips, O LORD, thou knowest.
Context
8 I delight to do your will, my God. Yes, your law is within my heart.”
9 I have proclaimed glad news of righteousness in the great assembly. Behold, I will not seal my lips, LORD, you know.
10 I have not hidden your righteousness within my heart. I have declared your faithfulness and your salvation. I have not concealed your loving kindness and your truth from the great assembly.