"For my people are foolish; they know me not; they are stupid children; they have no understanding. They are 'wise'-in doing evil! But how to do good they know not."
Of course doing evil is not a wise course of action. God is using sarcasm to express His frustration with the moral stupidity of His people. They have been instructed. They had the Law. They had His prophets calling them back to understanding and obedience. But they foolishly disobeyed and went their own way.
There is a wisdom that is greater than any truth that this world can teach us. It is greater than mathematics or science. It is greater than history, the arts, or any compelling story from human literature. It contains deeper treasures than any school of education, museum, or human philosophy think tank could ever teach us. It is the wisdom that comes from the mind of God. And God's thoughts are recorded in the Bible. It is why it is a precious book.
God's wisdom is often mocked today. It is mocked by the scientific naturalist who makes sheer empiricism a god. It is mocked by the atheist who must worship something anyway... either his own intellect or the universe. It is mocked by the psychologist who reduces all human emotion and behavior to chemicals and evolutionary predispositions.
I have seen firsthand how rejection of God's wisdom creates moronic morality... even among Christians. The damage compounds in individuals, in society, in families, and in our institutions. It is frightful to know that vast groups of people who are being deceived by the God-mocking systems around today have no moral understanding yet are still responsible for their evil. This is why patiently living and passionately conversing about a Christian, biblical worldview are both major calls for all believers today.