Psalm 147:1 declares that praise is pleasant and fitting — a nearly identical statement to the fitting praise for the upright here.

Psalm 32:11 is nearly identical—both command the righteous and upright to rejoice and praise. A strong parallel between adjacent psalms.

Psalm 135:3 calls to praise the Lord because it is pleasant — a direct parallel to the idea here that praise is fitting for the upright.

Psalm 97:12 repeats the same phrase 'Rejoice in the Lord, you righteous'—a direct parallel reinforcing the call.

Psalm 30:4 calls the saints to sing praises and give thanks — a parallel command to the same audience.

Psalm 135:1 echoes the same call to praise the LORD, addressing his servants — parallel to the righteous in Psalm 33:1.

Psalm 113:1 calls the servants of the LORD to praise his name — a parallel summons to praise.

Psalm 92:1 affirms that singing praises to the LORD is good — a parallel endorsement of the praise commanded here.

Psalm 81:1 calls to sing aloud and shout for joy to God — a parallel exhortation to joyful praise.

Psalm 68:3 promises the righteous will exult before God — a parallel expression of the joy called for here.

Psalm 64:10 echoes the same themes: the righteous glad in the LORD and the upright exulting — a direct parallel.

Psalm 34:3 invites corporate exaltation of the LORD — a parallel call to praise with others.

Psalm 9:11 similarly calls to sing praises to the LORD and declare his deeds — a parallel exhortation to praise.

Psalm 78:37 shows their hearts were not steadfast — contrasting with the upright whose praise is fitting because of their faithful hearts.

Psalm 78:36 describes insincere flattery — a contrast to the genuine, fitting praise of the upright called for here.

Psalm 118:15 describes shouts of joy among the righteous for God's salvation — a specific instance of the fitting praise mentioned here.

Psalm 50:14-16 contrasts acceptable thanksgiving from the faithful with God's rebuke of the wicked who recite his laws — reinforcing that praise is fitting only for the upright.

Psalm 140:13 also links the righteous and upright with giving thanks — reinforcing that praise is fitting for them.

Romans 3:10 declares no one is righteous — a stark contrast to the assumption here that the righteous exist and should rejoice.

Philippians 4:4 echoes this same command to rejoice in the Lord, extending it to 'always' — a NT parallel to the OT call for the righteous to praise.

Philippians 3:1 directly commands 'rejoice in the Lord' — a clear New Testament echo of Psalm 33:1's call.

Proverbs 15:8 contrasts the wicked's sacrifice (abomination) with the upright's prayer (delight) — reinforcing that praise from the upright is fitting.

Habakkuk 3:18 declares personal joy in the LORD despite hardship — echoing the call to rejoice in Psalm 33:1.

Romans 5:19 explains how many are made righteous through Christ's obedience — providing the basis for the righteous who are called to rejoice here.

1 Corinthians 1:31 quotes 'boast in the Lord'—a parallel to rejoicing in the Lord, though from a different OT source.