C.H. Spurgeons's The Treasury of David
Verse 27. Let them shout for joy, and be glad, that favour my righteous cause. Even those who could not render him active aid, but in their hearts favoured him, David would have the Lord reward most abundantly. Men of tender heart set great store by the good wishes and prayers of the Lord's people. Jesus also prizes those whose hearts are with his cause. The day is coming when shouts of victory shall be raised by all who are on Christ's side, for the battle will turn, and the foes of truth shall be routed. Yea, let them say continually, Let the Lord be magnified. He would have their gladness contributory to the divine glory; they are not to shout to David's praise, but for the honour of Jehovah. Such acclamations may fitly be continued throughout time and eternity. Which hath pleasure in the prosperity of his servant. They recognised David as the Lord's servant, and saw with pleasure the Lord's favour to him. We can have no nobler title than "servant of God," and no greater reward than for our Master to delight in our prosperity. What true prosperity may be we are not always best able to judge. We must leave that in Jesus' hand; he will not fail to rule all things for our highest good.
"For by his saints it stands confessed,
That what he does is always best."
EXPLANATORY NOTES AND QUAINT SAYINGS
Verse 27. See how the hearts of the saints have been drawn out against their persecutors. Prayers are the arms that in times of persecution the saints have still had recourse to. The Romans being in great distress were put so hard to it, that they were fain to take the weapons out of the temple of their gods to fight with their enemies, and so they overcame them: so when the people of God have been hard put to it by reason of afflictions and persecutions, the weapons that they have fled to have been prayers and tears, and with these they have overcome their persecutors. Thomas Brooks.
HINTS FOR PASTORS AND LAYPERSONS
Verse 27. (last clause). What is that prosperity in which the Lord hath pleasure?