9 Lord, confuse the wicked, confound their words, for I see violence and strife in the city. 10 Day and night they prowl about on its walls; malice and abuse are within it. 11 Destructive forces are at work in the city; threats and lies never leave its streets. 12 If an enemy were insulting me, I could endure it; if a foe were rising against me, I could hide. 13 But it is you, a man like myself, my companion, my close friend, 14 with whom I once enjoyed sweet fellowship at the house of God, as we walked about among the worshipers. 15 Let death take my enemies by surprise; let them go down alive to the realm of the dead, for evil finds lodging among them.

Matthew Henry's Commentary on Psalm 55:9-15

Commentary on Psalm 55:9-15

(Read Psalm 55:9-15)

No wickedness so distresses the believer, as that which he witnesses in those who profess to be of the church of God. Let us not be surprised at the corruptions and disorders of the church on earth, but long to see the New Jerusalem. He complains of one that had been very industrious against him. God often destroys the enemies of the church by dividing them. And an interest divided against itself cannot long stand. The true Christian must expect trials from professed friends, from those with whom he has been united; this will be very painful; but by looking unto Jesus we shall be enabled to bear it. Christ was betrayed by a companion, a disciple, an apostle, who resembled Ahithophel in his crimes and doom. Both were speedily overtaken by Divine vengeance. And this prayer is a prophecy of the utter, the everlasting ruin, of all who oppose and rebel against the Messiah.