Psalms 40:9

7 Then said I, Lo, I come: in the volume of the book it is written of me,

8 I delight to do thy will, O my God: yea, thy law is within my heart.

I have preached righteousness in the great congregation: lo, I have not refrained my lips, O LORD, thou knowest.

10 I 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.

11 Withhold not thou thy tender mercies from me, O LORD: let thy lovingkindness and thy truth continually preserve me.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
I proclaim righteousness in the great assembly; behold, I do not seal my lips, as You, O LORD, do know.
KJV
I have preached righteousness in the great congregation: lo, I have not refrained my lips, O LORD, thou knowest.
WEB
I have proclaimed glad news of righteousness in the great assembly. Behold, I will not seal my lips, LORD, you know.
ASV
I have proclaimed glad tidings of righteousness in the great assembly; Lo, I will not refrain my lips, O Jehovah, thou knowest.
DARBY
I have published righteousness in the great congregation: behold, I have not withheld my lips, Jehovah, *thou* knowest.
BLB
I have proclaimed tidings of righteousness in the great assembly; behold, I do not restrain my lips, O YHWH, You have known.
ÅB
Jeg har forkynt rettferdighet i en stor forsamling;
se, jeg lukket ikke leppene mine.
Herre, du vet det.
OTB
Jeg har forkynt rettferdighetens gode nyheter i den store forsamlingen;
Se, jeg vil ikke holde mine lepper tilbake, Herre, du vet.
B1930
Jeg har budskap om rettferdighet i en stor forsamling; se, jeg lukket ikke mine leber; Herre, du vet det.

Study notes (Tyndale)

Original text and word study

Cross references