Vs. 1-7 show the depth of David’s repentance for his sin;
Vs. 8-10 show God’s forgiveness.
King David asks God to spare him from punishment for his sins (vs. 1-2), and appeals to God for mercy to forgive his sins (vs. 2-3). Contrast this with those who tell people today that they should “claim God’s forgiveness” for sins, that is, they have a claim on forgiveness, not a request! There is nothing in this Psalm to indicate specifically which sin David had committed, thus it indicates David’s general feeling whenever he realized he had sinned. This is what is indicated in the New Testament when God’s selection of David as king was with the statement: “’I have found David the son of Jesse, a man after My own heart, who will do all My will’” (Acts 13:22). David’s sensitivity to his own sin is the kind of heart God wants us all to have.
David further shows how deeply one should feel alienation from God: “weary with my groaning,” bed swims “all night,” “drench my couch with my tears,” “my eye wastes away because of my grief.” Truly, Paul wrote to Christians in the New Testament in 2 Corinthians 7:10: “For godly sorrow produces repentance leading to salvation, not to be regretted; but the sorrow of the world produces death.” Jesus wept over the impenitence of His own people (Luke 19:41-44), and for those who would need repentance for their sins to come to Him for salvation (Hebrews 5:5-9). It’s up to a sinner to keenly feel the need to be rid of his/her own sins, and not point the finger at others for causing them to sin! True repentance is preceded by personal grief and tears!
“Depart from me all you workers of iniquity,” is the statement of a person who declares himself separated from sinners. This is David’s intention to NOT be associated again with those who could influence him toward sin by exploiting his weaknesses. David’s declaration is based upon his confidence that God forgives sincere repentance, and that his sinful associates should not expect him to continue with them in whatever sin had been committed. In the New Testament, Christians are told by Peter that this separation is noticeable. “For we have spent enough of our past lifetime in doing the will of the Gentiles–when we walked in lewdness, lusts, drunkenness, revelries, drinking parties, and abominable idolatries. In regard to these, they think it strange that you do not run with them in the same flood of dissipation, speaking evil of you. They will give an account to Him who is ready to judge the living and the dead” (1 Peter 4:3-5). Repentance without this intention to disconnect is usually ineffective. This statement of separation from sinners is also what Jesus will say on the Judgment Day that will begin eternity (Matthew 7:21-23; Luke 13:23-27).