Charles H. Spurgeon on Psalms 101:5

Detraction, ambition, and avarice are three weeds which spring and flourish in the rich soil of a court. The psalmist declareth his resolution to undertake the difficult task of eradicating them for the benefit of his people, that Israelites might not be harassed by informers, or repressed by insolent and rapacious ministers. Shall we imagine these vices less odious in the eyes of that King whose character was composed of humilty and charity; or will Christ admit those tempers into the court of heaven, which David determined to exclude from his court upon earth? —George Horne.

Verses 5-10. Perfect, as prophetic of Christ, is the delineation of his associates and disciples. The perverse; the evil-doers; the slanderers, and the proud found no fellowship with him. There were no common principles; no bond of union between them. There was "a gulph" interposed, as in the parable, which they could not pass; and what they saw of Christ, they beheld only from a distance. Nor even now, as then, can "the deceitful" dwell in Christ's "house" —his holy temple; nor the man of "lies be established" by his love and favour. They must renounce their vices before they can be admitted to his covenant; or, however they may claim communion with Him, he in return can have no sympathy with them. —William Hill Tucker.