The Rechabites.

"This is what the LORD Almighty, the God of Israel, says: Go and tell the people of Judah and those living in Jerusalem, 'Will you not learn a lesson and obey my words?' declares the LORD. Jehonadab son of Rekab ordered his descendants not to drink wine and this command has been kept. To this day they do not drink wine, because they obey their forefather's command. But I have spoken to you again and again, yet you have not obeyed me.

Again and again I sent all my servants the prophets to you. They said, "Each of you must turn from your wicked ways and reform your actions; do not follow other gods to serve them. Then you will live in the land I have given to you and your ancestors." But you have not paid attention or listened to me.

The descendants of Jehonadab son of Rekab have carried out the command their forefather gave them, but these people have not obeyed me.' Then Jeremiah said to the family of the Rekabites, "This is what the LORD Almighty, the God of Israel, says: 'You have obeyed the command of your forefather Jehonadab and have followed all his instructions and have done everything he ordered.' Therefore this is what the LORD Almighty, the God of Israel, says: 'Jehonadab son of Rekab will never fail to have a descendant to serve me.'"   Jeremiah 35:13

Rechabites are the descendants of Rechab through Jonadab or Jehonadab. They belonged to the Kenites who accompanied the children of Israel into the holy land, and dwelt among them. Moses married a Kenite wife, and Jael was the wife of "Heber the Kenite". Saul also showed kindness to the Kenites. The main body of the Kenites dwelt in cities, and adopted settled habits of life; but Jehonadab forbade his descendants to drink wine or to live in cities. They were commanded to lead always a nomad life. They adhered to the law laid down by Jonadab, and were noted for their fidelity to the old-established custom of their family in the days of Jeremiah; and this feature of their character is referred to by God for the purpose of giving point to his message to Judah.

In 1839 the Reverend Joseph Wolff, who later went to Bokhara to attempt to save Lieutenant Colonel Charles Stoddart and Captain Arthur Conolly, found inYemen, near Sana'a, a tribe claiming to be descendants of Jehonadab; and in the late nineteenth century a Bedouin tribe was found near the Dead Sea who also professed to be descendants of Jehonadab.     

 http://en.wikipedia.org/wiki/Rechabite

God compares the actions of the Rechabites to the Jews. They obeyed their earthly father but Israel would not obey their God. God then recognizes and rewards the Rechabites and tells them they will always have descendants to worship him. God appreciates the attitude of these people and praises them before all Israel. May we all be like them in obedience to God.