'Shrewd' in the Bible

But Amnon had a friend whose name was Jonadab, the son of Shimeah, David’s brother; and Jonadab was a very shrewd man.

“He frustrates the plotting of the shrewd,So that their hands cannot attain success.

They make shrewd plans against Your people,And conspire together against Your treasured ones.

Strike a scoffer and the naive may become shrewd,But reprove one who has understanding and he will gain knowledge.

“For My people are foolish,They know Me not;They are stupid childrenAnd have no understanding.They are shrewd to do evil,But to do good they do not know.”