The fool says in his heart,
“There is no God.”
David’s intent isn’t to provide a definition of who is a fool, but a thousand years later, give or take, the apostle Paul does tend to agree (Romans 1:18-23). Wait, I know I saw a few stones around her somewhere — oh, there they are!
All have turned aside,
there is no one who does good,
Now that doesn’t sound good. There’s just something about that word all that really doesn’t leave room for exclusion. Even so, the goal here is not to show that all on earth are fools, nor to imply that there isn’t an ounce of good in anyone. Taken as a whole, the Psalm is simply a characterization of the wicked. Instead of looking at verse 3 as blanket condemnation on everyone as corrupt and vile and foolish, a better conclusion is that of Paul. Paul quoted this Psalm in Romans chapter 3, and concluded simply that “all have sinned and fall short of the glory of God” (Romans 3:23). Often we stop there in Romans chapter 3, but the next verse explains that we are justified freely by the grace of God (Romans 3:24).
So just as Psalm 14 is a characterization of the wicked, Psalm 15 is a characterization of the righteous. Just as someone who has found no need in his heart for God is a fool, those who have made room in their heart for God are the righteous. Not through our own righteous deeds, but through the sacrificial atonement of Christ (Isaiah 64:4-9, Titus 3:3-7). In many ways, these 2 Psalms fit very nicely with Romans chapter 3.
Thank you Jesus, for not leaving me to be the fool, but by redeeming me with Your blood, you have cleansed me and made me righteous — not through my own goodness, but through your own perfect sacrifice. May I live each day to glorify Your name and the name of the One Who sent You.