Romans 1:21-22

because, knowing God, they did not glorify Him as God, neither were they thankful; but they became vain in their reasonings, and their foolish heart was darkened.

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;

2 Corinthians 4:3-4

But if indeed our gospel is hidden, it is hidden with those who are lost:

Galatians 5:15

But if you bite and devour one another, take heed that you may not be consumed one of another.

Ephesians 4:17-18

Therefore I say this, and witness in the Lord, that you no longer walk about as the Gentiles also walk about 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, knowing God, they did not glorify Him as God, neither were they thankful; but they became vain in their reasonings, and their foolish heart was darkened.
2 Corinthians 4:3
But if indeed our gospel is hidden, it is hidden with those who are lost:
Ephesians 4:17
Therefore I say this, and witness in the Lord, that you no longer walk about as the Gentiles also walk about in the vanity of their mind,

Eat up

Galatians 5:15
But if you bite and devour one another, take heed that you may not be consumed one of another.