1 Corinthians 3:19

For the wisdom of this world is foolishness with God. For it has been written. He taketh the wise in their own craftiness.

James 3:15

This is not the wisdom that comes down from above, but it is earthly, intellectual, and demoniacal.

Treasury of Scripture Knowledge

Summary

But Amnon had a friend, whose name was Jonadab, the son of Shimeah David's brother: and Jonadab was a very subtil man.

Bible References

Subtil man

1 Corinthians 3:19
For the wisdom of this world is foolishness with God. For it has been written. He taketh the wise in their own craftiness.
James 3:15
This is not the wisdom that comes down from above, but it is earthly, intellectual, and demoniacal.