Charles H. Spurgeon on Psalms 113:1

Praise, O ye servants of the LORD. From the exhortation to praise God, and the declaration of his deserving to be praised; learn, that as it is all men's duty to praise the Lord, so in special it is the duty of his ministers, and officers of his house. First, because their office doth call for the discharge of it publicly. Next, because as they should be best acquainted with the reasons of his praise, so also should they be the fittest instruments to declare it. And lastly, because the ungodly are deaf unto the exhortation, and dumb in the obedience of it; therefore when he hath said, "Praise ye the Lord, " he subjoins, "Praise, O ye servants of the Lord." —David Dickson.