'Understanding' in the Bible

And I will give you pastors according to mine heart, which shall feed you with knowledge and understanding.

For my people is foolish, they have not known me; they are sottish children, and they have none understanding: they are wise to do evil, but to do good they have no knowledge.

Hear now this, O foolish people, and without understanding; which have eyes, and see not; which have ears, and hear not:

He hath made the earth by his power, he hath established the world by his wisdom, and hath stretched out the heaven by his understanding.