Romans 3:11
there is none that understandeth, there is none that seeketh after God.
Matthew 13:13-14
Therefore I speak to them in parables: that seeing, they may not see; and hearing, they may not hear nor understand.
Matthew 13:19
When any person heareth the word of the kingdom, and doth not understand it, the wicked one cometh, and snatcheth away what was sown on his heart: such is he who is the sown by the road-side.
Romans 1:22
Affecting to be sophists, they turned idiots,
Romans 1:28
And since they thought not fit to hold the Deity in acknowledgment, God abandoned them to a reprobate mind, to practise deeds unbecoming;
Romans 8:7
Because the propensity of the flesh is inimical against God: for it is not in subjection to the law of God, neither indeed can it be.
Titus 3:3
For we ourselves also in time past were thoughtless, disobedient, erroneous, enslaved by various passions and pleasures, living in malice and envy, hateful, hating one another.
1 John 5:20
But we know that the Son of God hath come, and hath given to us understanding, that we might know the true God; and we are in him that is true, in his Son Jesus the Messiah. HE is the true God, and the life eternal.