Charles Ellicott Commentary Psalms 149:4

"For Jehovah taketh pleasure in his people: He will beautify the meek with salvation." — Psalms 149:4 (ASV)

He will beautify the meek ... —Rather, He adorns the oppressed with salvation. Not only is the victory which achieves the deliverance of the afflicted people a relief to them, but the honour won in the sight of the world is like a beautiful robe, a figure no doubt suggested by the actual triumphal dresses of the victors, or the spoils in which they appeared after the battle. (Isaiah 60:7; Isaiah 61:3; Judges 5:30.)