“Have they no knowledge, all the evildoers who eat up my people as they eat bread and do not call upon the Lord?” (Psalm 14:4, ESV)
David was amazed at the ignorance of fools and evil men who devour God’s people. The display of their wickedness is most pronounced in their unscrupulous attacks on God’s people. They are oblivious to the fact that God will overthrow and defeat them, because in attacking God’s people they are attacking God himself.
This reminds us of our own generation of evil doers in whom we often ask, “are they serious? Don’t they have any idea what they’re doing and who they’re doing it to? They don’t because the very definition of foolishness is the refusal to see the obvious. It also reminds us that even we believers sometimes don’t see the back of our own heads.