Romans 3:11
there is none that understands, there is none that seeks God;
Matthew 13:13-14
For this reason I speak to them in parables; because seeing they do not see, and hearing they do not hear, nor understand.
Matthew 13:19
When any one hears the word of the kingdom and does not understand it, the evil one comes and takes away the seed sown in his heart. This is he that received seed by the way.
Romans 1:22
Saying that they were wise they became foolish,
Romans 1:28
And as they did not choose to retain God in their knowledge, God gave them up to a reprobate mind, to do things which are not proper,
Romans 8:7
Because the minding of the flesh is enmity against God; for it is not subject to the law of God; for it can not be.
Titus 3:3
For we formerly were foolish, disobedient, deceived, serving various desires and pleasures, living in malice and envy, detestable, and hating one another;
1 John 5:20
And we know that the Son of God has come, and has given us understanding that we may know the true One; and we are in the true One, in his Son Jesus Christ; this is the true God, and eternal life.