John 8:43
Wherefore do you not understand my speech? Because you are not able to hear my word.
John 7:17
if any one may will to do His will, he shall know concerning the teaching, whether it is of God, or I speak for myself.
John 5:43
I have come in the name of my Father, and you do not receive me: if another may come in his own name, you will receive him.
John 6:60
Then many of His disciples, hearing, said, This is a hard sermon; who is able to hear it?
John 8:27
They did not know that He spoke to them concerning the Father.
John 12:39-40
Wherefore were they not able to believe, because Isaiah again said,
Acts 7:51
Ye stiffnecked and uncircumcised in heart and ears, you do always resist the Holy Ghost; as your fathers did, so do ye.
Romans 3:11
there is no one who understands, there is no one who seeks out God;
Romans 8:7-8
Therefore the mind of depravity is enmity toward God: for it is not subordinated to the law of God, for it is not able so to be.