And the children of the Kenite, Moses' father in law, went up out of the city of palm trees with the children of Judah into the wilderness of Judah, which lieth in the south of Arad; and they went and dwelt among the people. The children of the Kenite, Moses' father-in-law - For an account of Jethro, the father-in-law of Moses, see Exodus 18:1-27 (note); Numbers 10:29 (note), etc.
The city of palm trees - This seems to have been some place near Jericho, which city is expressly called the city of palm trees, Deuteronomy 34:3; and though destroyed by Joshua, it might have some suburbs remaining where these harmless people had taken up their residence. The Kenites, the descendants of Jethro, the father-in-law of Moses, were always attached to the Israelites: they remained with them, says Calmet, during their wanderings in the wilderness, and accompanied them to the promised land. They received there a lot with the tribe of Judah, and remained in the city of palm trees during the life of Joshua; but after his death, not contented with their portion, or molested by the original inhabitants, they united with the tribe of Judah, and went with them to attack Arad. After the conquest of that country, the Kenites established themselves there, and remained in it till the days of Saul, mingled with the Amalekites. When this king received a commandment from God to destroy the Amalekites, he sent a message to the Kenites to depart from among them, as God would not destroy them with the Amalekites. From them came Hemath, who was the father of the house of Rechab, 1 Chronicles 2:55, and the Rechabites, of whom we have a remarkable account Jeremiah 35:1, etc.