Isaiah 1:3
The ox knoweth his owner, and the ass his master's crib: but Israel doth not know, my people doth not consider.
Jeremiah 8:7
Yes, the stork in the heaven knoweth her appointed times; and the turtle and the crane and the swallow observe the time of their coming; but my people know not the judgment of the LORD.
Isaiah 44:18
They have not known nor understood: for he hath shut their eyes, that they cannot see; and their hearts, that they cannot understand.
Deuteronomy 32:28-29
For they are a nation void of counsel, neither is there any understanding in them.
Psalm 94:8
Understand, ye brutish among the people: and ye fools, when will ye be wise?
Proverbs 6:6
Go to the ant, thou sluggard; consider her ways, and be wise:
Isaiah 5:12
And the harp, and the viol, the tabret, and pipe, and wine, are in their feasts: but they regard not the work of the LORD, neither consider the operation of his hands.
Isaiah 27:11
When its boughs 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 show them no favor.
Jeremiah 4:22
For my people are foolish, they have not known me; they are sottish children, and they have no understanding: they are wise to do evil, but to do good they have no knowledge.
Jeremiah 9:3-6
And they bend their tongues like their bow for lies: but they are not valiant for the truth upon the earth; for they proceed from evil to evil, and they know not me, saith the LORD.
Jeremiah 10:8
But they are altogether brutish and foolish: the stock is a doctrine of vanities.
Jeremiah 10:14
Every man is brutish in his knowledge: every founder is confounded by the graven image: for his molten image is falsehood, and there is no breath in them.
Matthew 13:13-15
Therefore I speak to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.
Matthew 13:19
When any one heareth the word of the kingdom, and understandeth it not, then cometh the wicked one, and catcheth away that which was sown in his heart. This is he who received seed by the way side.
Romans 1:28
And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;
2 Peter 3:5
For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water: