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.
Subtil man
Bible References
Subtil man
1 Corinthians 3:19
For the wisdom of this world is foolishness with God; for it is written: He takes the wise in their own craftiness.
James 3:15
This wisdom comes not from above, but is earthly, animal, demoniac.