'Foolish' in the Bible

For I was envious of the arrogantAs I saw the prosperity of the wicked.

Then I was senseless and ignorant;I was like a beast before You.

Remember this, O Lord, the enemy has scoffed,And a foolish and impious people has spurned Your name.

Arise, O God, plead Your own cause;Remember how the foolish man scoffs at You all day long.