7:1-6 Have you ever been falsely accused or so badly hurt that you wanted revenge? David wrote this psalm in response to the slanderous accusations of those who claimed he was trying to kill Saul and seize the throne (1 Samuel 24:9-11). Instead of taking matters into his own hands and striking back, David cried out to God for justice. The proper response to slander is prayer, not revenge, because God says, “Vengeance is mine; I will repay” (Romans 12:19; see also Deuteronomy 32:35, 36; Hebrews 10:30). Instead of striking back, ask God to take your case, bring justice, and restore your reputation.
7:1 Shiggaion (see title) is a term from the verb “to err” or “to wander”; it could also mean “wild” or “ecstatic.” It is a poem written with intense feeling, a lament to stir the emotions.
7:9 “The hearts and reins,” literally kidneys, means the deepest thoughts and feelings. Nothing is hidden from God—this can be either terrifying or comforting. Our thoughts are an open book to him. Because God knows even our motives, we have no place to hide, no way to pretend we can get away with sin. But that very knowledge also gives us great comfort. We don’t have to impress God or put up a false front. Instead, we can trust God to help us work through our weaknesses in order to serve him as he has planned. When we truly follow God, he rewards our efforts.
7:14-16 When allowed to run its course, evil destroys itself. Violent people become victims of violence, and liars become victims of others’ deceit (9:15, 16). In the process, however, innocent people are hurt. Sometimes God intervenes and stops evildoers in their tracks in order to protect his followers. At other times, for reasons known only to him, God allows evil to continue even though innocent people are hurt. It is during these times that we must ask God to protect us. Remember that God will execute final justice, although it may not be during our lifetime.
7:17 During a time of great evil and injustice, David was grateful that God was just and fair (see also 7:11). When we wonder if anyone is honest or fair, we can be assured that God will continue to bring justice and fairness when we involve him in our activities. If you ever feel that you are being treated unfairly, ask the one who is always fair and just to be with you. Then thank him for his presence (see Isaiah 42:1-6).