John Gill Commentary Psalms 147:1

"Praise ye Jehovah; For it is good to sing praises unto our God; For it is pleasant, [and] praise is comely." — Psalms 147:1 (ASV)

Praise ye the Lord When he shall reign, as Kimchi connects this psalm with the preceding; the arguments used to engage men to this work are taken partly from the nature of it, as in the next clauses; and partly from what the Lord is and does, as in the following verses; for [it is] good to sing praises unto our God; it being agreeably to his revealed will, what he enjoins, approves of, and accepts, and is profitable to his people, as well as makes his glory; see (Psalms 92:1) .

Some render it, "because [he is] good", as in (Psalms 106:1) (107:1) ; but the accents, and what follows, will not admit of this sense.

for it [is] pleasant; to our God; with which the Septuagint, Vulgate Latin, Ethiopic, and Arabic versions, join this clause; the sacrifice of praise is more pleasing to the Lord than any ceremonial sacrifice, especially when offered from a grateful heart in the name of Christ, and with a view to his glory; and it is pleasant to saints themselves, when grace is in exercise, and they make melody in their hearts to the Lord.

[and] praise is comely: is due to the Lord, and becomes his people to give it to him; it is but their reasonable service, and a beautiful and lovely sight it is to see the chosen, redeemed, and called of the Lamb, harping with their harps, and singing the song of redeeming love.