Jeremiah 6:10To whom shall I speak, and give warning, that they may hear? behold, their ear is uncircumcised, and they cannot hearken: behold, the word of the LORD is unto them a reproach; they have no delight in it.
John 7:17If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
Proverbs 28:5Evil men understand not judgment: but they that seek the LORD understand all things.
Isaiah 6:9And he said, Go, and tell this people, Hear ye indeed, but understand not; and see ye indeed, but perceive not.
Isaiah 44:18They have not known nor understood: for he hath shut their eyes, that they cannot see; and their hearts, that they cannot understand.
Hosea 14:9Who is wise, and he shall understand these things? prudent, and he shall know them? for the ways of the LORD are right, and the just shall walk in them: but the transgressors shall fall therein.
Micah 4:12But they know not the thoughts of the LORD, neither understand they his counsel: for he shall gather them as the sheaves into the floor.
John 5:43I am come in my Father's name, and ye receive me not: if another shall come in his own name, him ye will receive.
John 6:60Many therefore of his disciples, when they had heard this, said, This is an hard saying; who can hear it?
John 8:27They understood not that he spake to them of the Father.
John 12:39-40Therefore they could not believe, because that Esaias said again, He hath blinded their eyes, and hardened their heart; that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them.
Acts 7:51Ye stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Ghost: as your fathers did, so do ye.
Romans 3:11There is none that understandeth, there is none that seeketh after God.
Romans 8:7-8Because the carnal mind is enmity against God: for it is not subject to the law of God, neither indeed can be. So then they that are in the flesh cannot please God.