What does Psalm 64:9 mean?

David predicts that when God turns the tables on evil plotters (Psalm 64:2–6), it will serve as a warning to the world (Psalm 64:7–8). Instead of destroying David from the shadows, these enemies will be exposed and ruined to their own shame. That the people "ponder" means they do not immediately understand what has happened—they know God has acted to bring judgment and they reflect on it.

Believers may not fully comprehend the Lord's ways, but they should meditate upon His character. Because He is omnipotent, omniscient, omnipresent, and immutable, we cannot assume our minds can contain His (Isaiah 55:8–9). It is best to ponder the fact that His way is perfect (Psalm 18:30), acknowledge Him and submit to His perfect will (Proverbs 3:5–6). Even those who have no faith in God can—and should—learn something from the example of those caught in their own sinful plots (Proverbs 19:25).