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; as it is written, He taketh the wise in their own craftiness.
James 3:15
This wisdom descendeth not from above, but is earthly, animal, devilish.