Summary: David describes evil people, being selfish to the core. He then describes God, ever loving. Finally, as he's done before, he asks God's protection from evil in his life.
Response: I'll be honest: many times, I feel less like the righteous in this chapter and closer to the wicked. I don't like to be there, but if I'm honest, I know I can't get to that other side on my own. For me, it's not "save me because I'm righteous" so much as "save me from my own wickedness."