'Folly' in the Bible

For you will be ashamed [of the degradation] of the oaks in which you took [idolatrous] pleasure,And you will be ashamed of the gardens [of passion] which you have chosen [for pagan worship].

Therefore the Lord does not rejoice over their young men,Nor does He have compassion on their fatherless or their widows;For every one of them is godless and an evildoer,And every mouth is speaking foolishness.In spite of all this, God’s anger does not turn awayBut His hand is still stretched out [in judgment].

For the fool speaks nonsense,And his heart (mind) plans wickedness:To practice ungodliness and to speak error concerning the Lord,To keep the craving of the hungry unsatisfiedAnd to deprive the thirsty of drink.

Do you [who worship idols] not know? Have you not heard?Has it not been told to you from the beginning?Have you not understood from the foundations of the earth [the omnipotence of God and the stupidity of bowing to idols]?