Romans 1:21-22
because, having known God, they did not glorify Him as God, nor did they give thanks; but they became vain in their reasonings, and their senseless heart was darkened.
Romans 1:28
And, as they did not approve the holding of God in their knowledge, God delivered them up to a reprobate mind, to do those things which are not becoming;
2 Corinthians 4:3-4
And, even if our Gospel has been veiled, it has been veiled in those who perish;
Galatians 5:15
But, if ye bite and devour one another, beware, lest ye be consumed by one another.
Ephesians 4:17-18
This, therefore, I say, and testify in the Lord, that ye no longer walk as the gentiles also walk, in the vanity of their mind,