Spurgeon, in “The Treasury of David”
A PSALM OF DAVID. The life of David wherein he comes in contact with Saul and Doeg is the best explanation of this Psalm; and surely there can be no reasonable doubt that David wrote it, and wrote it in the time of his exile and peril. The tremendous outburst at the end has in it the warmth which was so natural to David, who was never lukewarm in anything; yet it is to be noticed that concerning his enemies he was often hot in language through indignation, and yet he was cool in action, for he was not revengeful. His was no petty malice, but a righteous anger: he foresaw, foretold, and even desired the just vengeance of God upon the proud and wicked, and yet he would not avail himself of opportunities to revenge himself upon those who had done him wrong. It may be that his appeals to the great King cooled his anger, and enabled him to leave his wrongs unredressed by any personal act of violence. “Vengeance is mine; I will repay, saith the Lord”; and David when most wounded by undeserved persecution and wicked falsehood was glad to leave his matters at the foot of the throne, where they would be safe with the King of kings.
Knowing God through His Word ... Day by Day 