Romans 1:21-22

Because though they knew God, they did not glorify him as God, nor were they thankful to him; but became perverse in their reasonings, and their senseless minds were darkened;

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 shameful;

2 Corinthians 4:3-4

But if our gospel is veiled, it is veiled to them that 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 charge you in the Lord, that ye no longer walk as the rest of the gentiles walk in the vanity of their mind,

Treasury of Scripture Knowledge

Summary

Have all the workers of iniquity no knowledge? who eat up my people as they eat bread, and call not upon the LORD.

Bible References

Have

Romans 1:21
Because though they knew God, they did not glorify him as God, nor were they thankful to him; but became perverse in their reasonings, and their senseless minds were darkened;
2 Corinthians 4:3
But if our gospel is veiled, it is veiled to them that perish,
Ephesians 4:17
This therefore I say, and charge you in the Lord, that ye no longer walk as the rest of the gentiles walk in the vanity of their mind,

Eat up

Galatians 5:15
But if ye bite and devour one another, beware lest ye be consumed by one another.