Kidner, Psalms 73-150, TOTC, p.436, commenting on Psalm 113:1:
Praise the LORD!
Praise, O servants of the LORD,
praise the name of the LORD!
"In these calls to praise there is more than mere repetition. There is point in specifying the Lord's servants and his name, since worship to be acceptable most be more than flattery and more than guesswork. It is the loving homage of the committed to the Revealed."
