Deuteronomy 32:28

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.

My people are destroyed for lack of knowledge: because thou hast rejected knowledge, I will also reject thee, that thou shalt be no priest to me: seeing thou hast forgotten the law of thy God, I will also forget thy children.

When the boughs thereof are withered, they shall be broken off: the women come, and set them on fire: for it is a people of no understanding: therefore he that made them will not have mercy on them, and he that formed them will shew them no favour.

And unto man he said, Behold, the fear of the Lord, that is wisdom; and to depart from evil is understanding.

The fear of the Lord is the beginning of knowledge: but fools despise wisdom and instruction.

Do ye thus requite the Lord, O foolish people and unwise? is not he thy father that hath bought thee? hath he not made thee, and established thee?

So I gave them up unto their own hearts’ lust: and they walked in their own counsels.

For the wisdom of this world is foolishness with God. For it is written, He taketh the wise in their own craftiness.

Therefore, behold, I will proceed to do a marvellous work among this people, even a marvellous work and a wonder: for the wisdom of their wise men shall perish, and the understanding of their prudent men shall be hid.

The wise men are ashamed, they are dismayed and taken: lo, they have rejected the word of the Lord; and what wisdom is in them?

And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive: For this people’s heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes, and hear with their ears, and should understand with their heart, and should be converted, and I should heal them.

For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.