1 Corinthians 3:19

This world's wisdom is "foolishness" in God's sight; for it is written, "He snares the wise with their own cunning."

James 3:15

That is not the wisdom which comes down from above: it belongs to earth, to the unspiritual nature, and to evil spirits.

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
This world's wisdom is "foolishness" in God's sight; for it is written, "He snares the wise with their own cunning."
James 3:15
That is not the wisdom which comes down from above: it belongs to earth, to the unspiritual nature, and to evil spirits.