But Amnon had a friend, whose name was Jonadab, the son of Shimeah David's brother: and Jonadab was a very subtle man.
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George Leo Haydock
AD 1849
A very wise man. That is, a crafty and subtle man: for the counsel he gave on this occasion shows that his wisdom was but carnal and worldly. (Challoner)
Jonadab seems to be styled Jonathan, chap. xxi. 21. (Calmet)