Maybe you've heard the well-known Civil War story about the person who asked Abraham Lincoln whether he thought God was on the side of the Union or the Confederacy. Lincoln is said to have replied that he wasn't concerned about whose side God was on; he was far more concerned that he was on God's side.
David was definitely on God's side--so much so that he could pray that God would defeat the plans of his enemies and bring these evil people down to judgment. David looked to God as his strong deliverer to protect him in battle, vindicate his trust in God, and deal with the violent, evil, and proud men who were out to destroy him. In other words, he left it to God.
While our detractors are probably not as numerous or as dangerous as David's were, you and I still have our own persecution to deal with by those hostile to the faith. But, no matter what our circumstances are, like David, we have a strong “deliverer” in the Lord, who “shields our head in the day of battle"(v. 7).
I thank God for this reassuring aspect of His character, and rest in the fact that vindication is His.
The Truth: “O you who love the LORD, hate evil! He preserves the souls of His saints; He delivers them from the hand of the wicked.” (Psalm 97:10)
