7:1-2 David felt that without God's intervention, the chaos of the world would shred him apart. Most fortunately for David, and all of God's children (including us), God always intervenes in our lives when we pray to Him.
7:3-5 David was willing to take responsibility (and subsequent discipline) for his actions, but he felt that in this situation, he was innocent. Ultimately, he left it up to God to be the judge and to met out the appropriate outcome.
7:6-8 Not only for himself, David wanted God to return to implement His own, error-free, justice system. The world needed it.
7:9-10 The system needed (needs) to be reordered. David prayed for the righteous to be put into places of power and the corrupt to lose theirs. But if that were not (yet) to be the case, David knew that he could rely on the defense of God over his life against corruption.
7:11-13 The judgement of evil and corrupt will be met with a sharp and swift sword; David was confident that not only was God aware, He was (is) also prepared. He is prepared to fully uproot and extinguish the corrupt elements of the world and humanity.
7:14-16 David also knew that the corrupt inevitably fall into their own chaos, and are then destroyed by it.
7:17 The most important point of David's psalm: his unrelenting praise of the Lord. For despite the trouble and chaos, God consistently provides peace and order.
