'Shrewd' in the Bible

Amnon had a friend named Jonadab, a son of David’s brother Shimeah. Jonadab was a very shrewd man,

with the pureYou prove Yourself pure,but with the crookedYou prove Yourself shrewd.

with the pureYou prove Yourself pure,but with the crookedYou prove Yourself shrewd.

Learn to be shrewd, you who are inexperienced;develop common sense, you who are foolish.

A shrewd person conceals knowledge,but a foolish heart publicizes stupidity.

and also against Hamath, which borders it,as well as Tyre and Sidon,though they are very shrewd.