Psalm 11 contains faith's response to fear's counsel. The psalmist is in danger, and either his friends or enemies are advising him to take refuge in flight. "Flee to the mountains," they say. But he refutes their advice, asserting that his true refuge is in God.
The problems the wicked create for their victims are obvious. Because they are weak, the victims of these people are "caught in the schemes" they devise and are "crushed." But David was not one of these weak persons. He was a strong military commander and later king of Israel. Nevertheless, the success of these practical atheists created a problem for David also. What is it? It is God's apparent toleration of the wicked, the suspicion that their boasts about God's not seeing or not caring might be true.