Psalm 147:1
Praise ye the Lord: for it is good to sing praises unto our God; for it is pleasant; and praise is comely.
Cross-reference
Psalm 92:1
Parallel
Psalm 92:1 says 'It is good to give thanks to the LORD' — a very close verbal parallel to 'it is good to sing praises' in the main verse.
Psalm 135:3
Parallel
Psalm 135:3 says 'sing to his name, for it is pleasant' — the same word 'pleasant' used in the main verse, reinforcing the fittingness of praise.
Psalm 112:1
Parallel
Psalm 112:1 begins with the same 'Praise the LORD' (Hallelujah) as Psalm 147:1, a strong verbal parallel.
Psalm 33:1
Parallel
Psalm 33:1 says 'praise befits the upright' — a synonymous statement to 'a song of praise is fitting' in the main verse.
Revelation 19:1–6
Parallel
Revelation 19:1-6 shouts 'Hallelujah!' — directly echoing the 'Praise the LORD' opening of Psalm 147:1.