Psalm 40:9
I have preached righteousness in the great congregation: lo, I have not refrained my lips, O Lord, thou knowest.
Cross-references
Psalm 22:22 similarly speaks of telling God's name in the congregation, directly paralleling the proclamation of glad news here.
Psalm 22:25 also mentions praise in the great congregation, reinforcing the theme of public proclamation of God's deeds.
Psalm 35:18 likewise thanks God in the great congregation, sharing the same setting and act of public praise.
Psalm 71:15-18 expands on proclaiming God's righteous acts and salvation all day, echoing the glad news of deliverance.
Psalm 89:1 vows to make known God's faithfulness with the mouth—a strong thematic parallel to proclaiming deliverance in the congregation.
Psalm 107:32 calls to extol God in the congregation—directly parallels the setting and action of proclaiming in the great congregation.
Psalm 111:1 also speaks of giving thanks in the congregation — echoing the public proclamation of God's works.
Job 7:11 uses the exact phrase 'I will not restrain my mouth'—a direct verbal parallel, but Job speaks in anguish while David proclaims glad news.
In John 7:26, Jesus speaks publicly despite opposition, mirroring the psalmist's resolve to proclaim righteousness in the great assembly.
In John 18:20, Jesus declares He taught openly in synagogues and temple, directly echoing 'I have not restrained my lips' from the psalm.
In Acts 20:20, Paul says he did not shrink from declaring what is profitable, publicly and house to house — the same boldness as the psalmist.
In Romans 1:16, Paul's 'not ashamed of the gospel' parallels the psalmist's unashamed proclamation of good news of righteousness.
In 2 Timothy 4:2, Paul commands preaching the word in season and out — directly echoing the psalmist's determination to not restrain his lips.
Isaiah 58:1 commands proclaiming sin — contrasting with the glad news of deliverance here, though both involve public speech.
In Philippians 2:16, Paul speaks of holding forth the word of life, a similar commitment to proclaiming God's truth as in the psalm.