The descendants of Moses' father-in-law, the Kenite, went with the people of Judah from the city of palms to the wilderness of Judah in the Negev near Arad where they settled among the people.
Saul sent a message to warn the Kenites, “Move out of the area and leave the Amalekites so that I don't destroy you with them, because you showed kindness to all the people of Israel on their way from Egypt.” So the Kenites moved away and left the Amalekites.