John 3:19

And this is the condemnation, that light has come into the world, and men love darkness rather than light; for their works are evil.

John 12:35

Then Jesus said to them, Yet a little while the light is with you. Walk about as you have the light, in order that the darkness may not overtake you: and he that walketh about in darkness does not know where he is going.

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 Timothy 2:19

The foundation of God stands solid indeed, having this seal, The Lord knows them that are his: and; Let every one naming the name of the Lord depart from iniquity.

1 John 2:11

But the one hating his brother is in darkness, and walks about in darkness, and does not know whither he is going, because the darkness has blinded his eyes.

Treasury of Scripture Knowledge

Summary

They know not, neither will they understand; they walk on in darkness: all the foundations of the earth are out of course.

Know not

All the, etc

Bible References

Know not

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;

All the, etc

2 Timothy 2:19
The foundation of God stands solid indeed, having this seal, The Lord knows them that are his: and; Let every one naming the name of the Lord depart from iniquity.