Romans 3:11
there is no one who understands, there is no one who seeks out God;
Matthew 13:13-14
Therefore I speak to them in parables; because seeing they see not, and hearing they hear not, neither do they understand.
Matthew 13:19
Every one hearing the word of the kingdom, and not understanding it, the wicked one comes, and seizes away that which is sown in his heart: he is the one sown by the wayside.
Romans 1:22
Saying that they were wise, they became fools,
Romans 1:28
And as they did not approve to have God in their knowledge, God gave them up to a reprobate mind, to do those things which are inappropriate;
Romans 8:7
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.
Titus 3:3
For when we also were without understanding, being disobedient, deceived, serving divers lusts and pleasures, living in sin and envy, hateful, hating one another;
1 John 5:20
But we know that the Son of God has come and has given unto us intelligence, that we know the truth. And we are in the true one, in his Son Jesus Christ; he is the true God, and eternal life.