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 folly in the sight of God. For it is written, "He entangleth the wise in their own craftiness."
James 3:15
This is not the wisdom which cometh from above, but is earthly, sensual, diabolical.