Albert Barnes Commentary Psalms 148:14

"And he hath lifted up the horn of his people, The praise of all his saints; Even of the children of Israel, a people near unto him. Praise ye Jehovah." — Psalms 148:14 (ASV)

He also exalts the horn of his people— He gives them power and prosperity. See the notes at (Psalms 89:17): And in thy favor our horn shall be exalted. Compare (Psalms 92:10); (Psalms 112:9).

The praise of all his saints— That is, “he has raised up praise for all his saints;” or, has given them occasion for praise. He has so blessed them with special mercies as to make praise especially appropriate for them.

Even of the children of Israel, a people near to him— whom he admits to his presence as his friends; whom he regards as his own. See the notes at (Ephesians 2:13); compare the notes at (Acts 2:39).

Praise you the Lord— Hallelujah. Let all unite in his praise.