Romans 3:11
there is none that understands; there is none that seeks after God;
Matthew 13:13-14
For this reason I speak to them in parables; because when they see, they see not; and when they hear, they hear not, nor do they understand.
Matthew 13:19
When any one hears the word of the kingdom, and understands it not, the wicked one comes and catches away that which was sown in his heart. This is he that received seed by the way side.
Romans 1:22
professing to be wise, they became foolish,
Romans 1:28
And as they refused to acknowledge God, God delivered them up to an undiscerning mind, to do detestable things;
Romans 8:7
Because the mind of the flesh is enmity against God; for it is not subject to the law of God, nor indeed can it be.
Titus 3:3
For we ourselves also were formerly foolish, disobedient, deceived, serving various desires and pleasures, living in malice and envy, hateful, and hating one an other.
1 John 5:20
And we know that the Son of God has come, and has given us understanding, that we may know him that is true: and we are in him that is true, in his Son Jesus Christ. This is the true God, and life eternal. Little children, keep yourselves from idols.