The transaction in connection with which Saul was guilty of a fresh disregard of God's will was an expedition which was appointed for him against the Amalekites. This people had been guilty of some very atrocious treatment of Israel in the wilderness of Sinai, the details of which are not given. Nations having a corporate life, when they continue to manifest the spirit of preceding generations, are held responsible for their actions, and liable to the penalty. Saul was sent to inflict on Amalek the retribution that had been due so long for his perfidious treatment of Israel on the way to Canaan. In the narrative, various places are mentioned as being in the Amalekite territory, but their exact sites are not known; and indeed this matters little, all that it is important to know being that the Amalekites were mainly a nomadic people, occupying the fringe between Canaan and the desert on the south border of Palestine, and doubtless subsisting to a large extent on the prey secured by them when they made forays into the territories of Israel. Saul gathered a great army to compass the destruction of this bitter and hostile people.
In reading of the instructions he received to exterminate them, to "slay both man and woman, infant and suckling, ox and sheep, camel and ass," we shudder to think of the fearful massacre which this involved. It was an order similar to that which the Israelites received to exterminate the inhabitants of Canaan, or that to destroy the Midianites, during the lifetime of Moses. Though it seems very horrible to us in whose eyes human life has become very sacred, it probably excited little feeling of the kind in the breasts of the Israelites, accustomed as they were, and as all Eastern nations were, to think very little of human life, and to witness wholesale slaughter with little emotion. But there is one thing in the order that we must not overlook, because it gave a complexion to the transaction quite different from that of ordinary massacres. That circumstance was, that the prey was to be destroyed as well as the people. In the case of an ordinary massacre, the conquering people abandon themselves to the licence of their passions, and hasten to enrich themselves by appropriating everything of value on which they can lay their hands. In the case of the Israelites, there was to be nothing of the kind. They were to destroy the prey just as thoroughly as they were to destroy the people. They were to enrich themselves in nothing. Now, this was a most important modification of the current practice in such things. But for this restriction, the extermination of the Amalekites would have been a wild carnival of selfish passion. The restriction appointed to Saul, like that which Joshua had imposed at Jericho, bound the people to the most rigid self-restraint, under circumstances when self-restraint was extremely difficult. The extermination was to be carried into effect with all the solemnity of a judicial execution, and the soldiers were to have no benefit from it whatever, any more than the jailer or the hangman can have benefit from the execution of some wretched murderer.
Now, let it be observed that it was in entirely disregarding this restriction that a chief part of Saul's disobedience lay. "Saul and the people spared Agag, and the best of the sheep, and of the oxen, and of the fatlings and the lambs, and all that was good, and would not utterly destroy them; but everything that was vile and refuse, that they destroyed utterly." The sparing of King Agag seems to have been a piece of vanity with Saul, for a conqueror returning home with a royal prisoner was greatly thought of in those Eastern lands. But the sparing of the prey was a matter of pure greed. Observe how the character of the transaction was wholly changed by this circumstance. Instead of wearing the aspect of a solemn retribution on a sinful nation, on a people laden with iniquity, all the more impressive because the ministers of God's vengeance abstained from appropriating a vestige of the property, but consigned the whole, like a plague-stricken mass, too polluted to be touched, to the furnace of destruction--instead of this, it just appeared like an ordinary unprincipled foray, in which the victorious party slew the other, mainly to get them out of the way and enable them without opposition to appropriate their goods. It was this consideration that made the offence of Saul so serious, that made his breach of the Divine order so guilty. Had he no knowledge of the history of his people? Did he not remember what had happened at Jericho in the days of Joshua, when Achan stole the wedge of gold and the Babylonian garment, and, in spite of the fact that the rest of the people had behaved well and that God's purpose in the main was amply carried out, Achan and all his family were judicially stoned to death? How could Saul expect that such a flagrant violation of the Divine command in the case of the Amalekites, perpetrated not on the sly by a single individual, but openly by the king and all the people, could escape the retribution of God?