Saul summoned the people, and numbered them in Telaim, two hundred thousand footmen, and ten thousand men of Judah.
      II. He appoints him a particular piece of service, in which he must now show his obedience to God more than in any thing he had done yet. Samuel premises God's authority to the command: Thus says the Lord of hosts, the Lord of all hosts, of Israel's hosts. He also gives him a reason for the command, that the severity he must use might not seem hard: I remember that which Amalek did to Israel,1 Samuel 15:2; 1 Samuel 15:2. God had an ancient quarrel with the Amalekites, for the injuries they did to his people Israel when he brought them out of Egypt. We have the story, Exodus 17:8-16, c., and the crime is aggravated, Deuteronomy 25:18. He basely smote the hindmost of them, and feared not God. God then swore that he would have war with Amalek from generation to generation, and that in process of time he would utterly put out the remembrance of Amalek this is the work that Saul is now appointed to do (1 Samuel 15:3; 1 Samuel 15:3): "Go and smite Amalek. Israel is now strong, and the measure of the iniquity of Amalek is now full; now go and make a full riddance of that devoted nation." He is expressly commanded to kill and slay all before him, man and woman, infant and suckling, and not spare them out of pity; also ox and sheep, camel and ass, and not spare them out of covetousness. Note, 1. Injuries done to God's Israel will certainly be reckoned for sooner or later, especially the opposition given them when they are coming out of Egypt. 2. God often bears long with those that are marked for ruin. The sentence passed is not executed speedily. 3. Though he bear long, he will not bear always. The year of recompence for the controversy of Israel will come at last. Though divine justice strikes slowly it strikes surely. 4. The longer judgment is delayed many times the more severe it is when it comes. 5. God chooses out instruments to do his work that are fittest for it. This was bloody work, and therefore Saul who was a rough and severe man must do it.