Cross reference
John 8:43
43 Why don't you understand my speech? Because you can't hear my word.
John 7:17
17 If anyone desires to do his will, he will know about the teaching, whether it is from God, or if I am speaking from myself.
Jeremiah 6:10
10 To whom shall I speak and testify, that they may hear? behold, their ear is uncircumcised, and they can't listen: behold, the word of Yahweh is become to them a reproach; they have no delight in it.
Romans 8:7-8
7 because the mind of the flesh is hostile towards God; for it is not subject to God's law, neither indeed can it be.
8 Those who are in the flesh can't please God.
Romans 3:11
11 There is no one who understands. There is no one who seeks after God.
Acts 7:51
51 "You stiff-necked and uncircumcised in heart and ears, you always resist the Holy Spirit! As your fathers did, so you do.
John 12:39-40
39 For this cause they couldn't believe, for Isaiah said again,
40 "He has blinded their eyes and he hardened their heart, Lest they should see with their eyes, And perceive with their heart, And would turn, And I would heal them."
John 8:27
27 They didn't understand that he spoke to them about the Father.
John 6:60
60 Therefore many of his disciples, when they heard this, said, "This is a hard saying! Who can listen to it?"
John 5:43
43 I have come in my Father's name, and you don't receive me. If another comes in his own name, you will receive him.
Micah 4:12
12 But they don't know the thoughts of Yahweh, Neither do they understand his counsel; For he has gathered them like the sheaves to the threshing floor.
Hosea 14:9
9 Who is wise, that he may understand these things? Who is prudent, that he may know them? For the ways of Yahweh are right, And the righteous walk in them; But the rebellious stumble in them.
Isaiah 44:18
18 They don't know, neither do they consider: for he has shut their eyes, that they can't see; and their hearts, that they can't understand.
Isaiah 6:9
9 He said, "Go, and tell this people, 'You hear indeed, But don't understand; And you see indeed, But don't perceive.'
Proverbs 28:5
5 Evil men don't understand justice; But those who seek Yahweh understand it fully.