Psalm 81:12 "So I gave them over to the stubbornness of their heart, To walk in their own devices.

Isaiah 1:3 "An ox knows its owner, And a donkey its master's manger, But Israel does not know, My people do not understand."

Isaiah 6:9 He said, "Go, and tell this people: 'Keep on listening, but do not perceive; Keep on looking, but do not understand.'

Isaiah 6:10 "Render the hearts of this people insensitive, Their ears dull, And their eyes dim, Otherwise they might see with their eyes, Hear with their ears, Understand with their hearts, And return and be healed."

Isaiah 29:10 For the LORD has poured over you a spirit of deep sleep, He has shut your eyes, the prophets; And He has covered your heads, the seers.

Jeremiah 10:8 But they are altogether stupid and foolish In their discipline of delusion-- their idol is wood!

Jeremiah 10:14 Every man is stupid, devoid of knowledge; Every goldsmith is put to shame by his idols; For his molten images are deceitful, And there is no breath in them. (NASB ©1995)