Jonadab in the Bible

But Amnon had a friend, whose name was Jonadab, the son of Shimeah David's brother: and Jonadab was a very subtil man.

"Why are you so depressed these past few mornings," Jonadab asked Amnon, "since you're a son of the king? Why not tell me?" Amnon replied, "I'm in love with my brother Absalom's sister Tamar."

And Jonadab said unto him, Lay thee down on thy bed, and make thyself sick: and when thy father cometh to see thee, say unto him, I pray thee, let my sister Tamar come, and give me meat, and dress the meat in my sight, that I may see it, and eat it at her hand.

And Jonadab, the son of Shimeah David's brother, answered and said, Let not my lord suppose that they have slain all the young men the king's sons; for Amnon only is dead: for by the appointment of Absalom this hath been determined from the day that he forced his sister Tamar.

And Jonadab said unto the king, Behold, the king's sons come: as thy servant said, so it is.

But they said, We will drink no wine: for Jonadab the son of Rechab our father commanded us, saying, Ye shall drink no wine, neither ye, nor your sons for ever:

Thus have we obeyed the voice of Jonadab the son of Rechab our father in all that he hath charged us, to drink no wine all our days, we, our wives, our sons, nor our daughters;

But we have dwelt in tents, and have obeyed, and done according to all that Jonadab our father commanded us.

The words of Jonadab the son of Rechab, that he commanded his sons not to drink wine, are performed; for unto this day they drink none, but obey their father's commandment: notwithstanding I have spoken unto you, rising early and speaking; but ye hearkened not unto me.

Because the sons of Jonadab the son of Rechab have performed the commandment of their father, which he commanded them; but this people hath not hearkened unto me:

And Jeremiah said unto the house of the Rechabites, Thus saith the LORD of hosts, the God of Israel; Because ye have obeyed the commandment of Jonadab your father, and kept all his precepts, and done according unto all that he hath commanded you:

Therefore thus saith the LORD of hosts, the God of Israel; Jonadab the son of Rechab shall not want a man to stand before me for ever.