15:6 And Saul said unto the {c} Kenites, Go, depart, get you down from among the Amalekites, lest I destroy you with them: for ye shewed {d} kindness to all the children of Israel, when they came up out of Egypt. So the Kenites departed from among the Amalekites.
(c) Which were the posterity of Jethro, Moses father in law.
(d) For Jethro came to visit them, and gave them good counsel, Ex 18:19.
15:6 Kenites - A people descending from, or nearly related to Jethro, who anciently dwelt in rocks near the Amalekites, Numb 24:21, and afterwards some of them dwelt in Judah, Judg 1:16, whence it is probable they removed, (which, dwelling in tents, they could easily do) and retired to their old habitation, because of the wars and troubles wherewith Judah was annoyed. Shewed kindness - Some of your progenitors did so, and for their sakes all of you shall fare the better. You were not guilty of that sin for which Amalek is now to be destroyed. When destroying judgments are abroad God takes care to separate the precious from the vile. It is then especially dangerous to be found in the company of God's enemies. The Jews have a saying, Wo to a wicked man, and to his neighbour.
15:1-9 The sentence of condemnation against the Amalekites had gone forth long before, Ex 17:14; De 25:19, but they had been spared till they filled up the measure of their sins. We are sure that the righteous Lord does no injustice to any. The remembering the kindness of the ancestors of the Kenites, in favour to them, at the time God was punishing the injuries done by the ancestors of the Amalekites, tended to clear the righteousness of God in this dispensation. It is dangerous to be found in the company of God's enemies, and it is our duty and interest to come out from among them, lest we share in their sins and plagues, Re 18:4. As the commandment had been express, and a test of Saul's obedience, his conduct evidently was the effect of a proud, rebellious spirit. He destroyed only the refuse, that was good for little. That which was now destroyed was sacrificed to the justice of God.