O LORD my God, if I have done this,
if there is wrong in my hands,
if I have repaid my friend with evil
or plundered my enemy without cause, (Psalm 7:3-4 ESV)
David cannot make the claim stated by this verse. Though he is the author of the Psalm and did great things for Israel and for God, his hands were covered with blood. Both those who were David’s friends and enemies suffered at his hands.
While a young man, after his induction into the service of Saul, David earned more respect and esteem from the people than the king. Saul, angry, and going insane at losing the honor that comes with the throne to any person, tried multiple times to kill David. Fleeing Saul, David declares to Saul’s son, Jonathan, his friend, his innocence. “Therefore deal kindly with your servant, for you have brought your servant into a covenant of the LORD with you. But if there is guilt in me, kill me yourself, for why should you bring me to your father?” (1 Samuel 20:8 ESV). In his early life there was nothing any could hold against David. Later in his life, after he ascends the throne vacated by king Saul’s death, is different. For example, David murdered one of his own soldiers, Uriah, a man supremely loyal to him, to cover up his adultery with the Uriah’s wife (2 Samuel 11). David knew his sin and repented (Psalm 51). He still continued to sin and then to repent.
Every person who has ever lived, or will ever live, sins and is guilty before God. God takes note of how we treat both our friends and our enemies. Repaid means to deal out, to recompense and give bountifully. The word friend is actually not used in this verse put is a translation of a word that means those with whom we have a pledge and bond of peace. To repay a friend with evil, which means all the word implies, suggests a solemn agreement between two has been arbitrarily violated. Or what of his enemies, those who cause him distress and try to bind him, press hard against him, treat with hostility and harass him? Has he plundered them without cause, which means to deliver up to death or take away for an empty reason, for vanity, just because he can. His actions motivated by the intention of his heart, is focused on self, not focused God. Self becomes the standard by which others are measured and judged.
Jesus, speaking through David, asks God to examine His heart and judge His actions. The Son of God stands before God willing to face any test which would reveal any sin. “If I have done this,” if anything in me shows the evidence of “wrong in my hands,” which is iniquity, unrighteousness, injustice, violently criminal acts against God and other, carried out by any part of my being. Are there any sinful actions for which I am accountable? If sin is present at any time then there is sin in the heart that breeds more sin. In Psalm 7:3-4, Jesus is asking to God to let happen to Him that which happens to those who sin. “For there is no truth in their mouth; their inmost self is destruction; their throat is an open grave; they flatter with their tongue. Make them bear their guilt, O God; let them fall by their own counsels; because of the abundance of their transgressions cast them out, for they have rebelled against you. (Psalm 5:9-10 ESV).
There is One, the Righteous Man of these Psalms, who does not sin. He cannot sin. Though tempted by the Deceiver, weakened in His human flesh, surrounded by a world which tugs and pulls toward sin, He did not sin. Why is it important Jesus is sinless?
God taught His people that the physical animals sacrificed for sin must have no blemishes (see Exodus 12:5; Leviticus 1:3; Numbers 6:14). A sacrifice for sin is required to cover the sins of the one offering the sacrifice. Annually, the blood of a lamb was poured out over the cover, the mercy seat of the ark, containing the broken Ten Commandments. God would look down and see the blood and not the laws which were broken and violated. Before the priest could do this for the people he had to cover his own sin. All people sin whether priests and kings and those who fall under their authority.
But when Christ appeared as a high priest of the good things that have come, then through the greater and more perfect tent (not made with hands, that is, not of this creation) he entered once for all into the holy places, not by means of the blood of goats and calves but by means of his own blood, thus securing an eternal redemption. For if the blood of goats and bulls, and the sprinkling of defiled persons with the ashes of a heifer, sanctify for the purification of the flesh, how much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify our conscience from dead works to serve the living God. (Hebrews 9:11-14 ESV)
Jesus had to be prefect so the sacrifice He offered would not first be for Himself. Only God is perfect and sinless, and Jesus is God in the flesh. No creature is capable of becoming sinless once sin corrupts his life. Jesus, God in the flesh, came specifically to die as a sacrifice for the sin of those created in His image. His death fulfills the requirements of the law. “Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them. For truly, I say to you, until heaven and earth pass away, not an iota, not a dot, will pass from the Law until all is accomplished” (Matthew 5:17-18 ESV). God’s law is not just the written, verbally declared commandments given in the Hebrew Scripture. God’s law is embedded in the hearts of those who are His. Intimate knowledge of the eternal law of God is given as an integral part of the image of God. “For when Gentiles, who do not have the law, by nature have the law. They show that the work of the law is written on their hearts, while their conscience also bears witness, and their conflicting thoughts accuse or even excuse them” (Romans 2:14-15 ESV). Those who sin know they sin. Jesus did not sin. Standing before God, He opens Himself to judicial examination, declaring His innocence of all wrongdoing, making Himself the only sacrifice worthy and capable of fulfilling the promises of God.