Saul said to David, Behold, my elder daughter Merab, her will I give you as wife: only be valiant for me, and fight Yahweh's battles. For Saul said, Don't let my hand be on him, but let the hand of the Philistines be on him.
      I. See how Saul expressed his malice against David. 1. He was afraid of him,1 Samuel 18:12; 1 Samuel 18:12. Perhaps he pretended to be afraid that David would do himself mischief, to force his way to the crown. Those that design ill against others are commonly willing to have it thought that others design ill against them. But David's withdrawal (1 Samuel 18:11; 1 Samuel 18:11) was a plain evidence that he was far from such a thought. However, he really stood in awe of him, as Herod feared John, Mark 6:20. Saul was sensible that he had lost the favourable presence of God himself, and that David had it, and for this reason he feared him. Note, Those are truly great and to be reverenced that have God with them. The more wisely David behaved himself the more Saul feared him,1 Samuel 18:15; 1 Samuel 18:15, and again 1 Samuel 18:29; 1 Samuel 18:29. Men think the way to be feared is to hector and threaten, which makes them feared by fools only, but despised by the wise and good; whereas the way to be both feared and loved, feared by those to whom we would wish to be a terror and loved by those to whom we would wish to be a delight, is to behave ourselves wisely. Wisdom makes the face to shine and commands respect. 2. He removed him from court, and gave him a regiment in the country, 1 Samuel 18:13; 1 Samuel 18:13. He made him captain over 1000, that he might be from under his eye, because he hated the sight of him; and that he might not secure the interest of the courtiers. Yet herein he did impolitely; for it gave David an opportunity of ingratiating himself with the people, who therefore loved him (1 Samuel 18:16; 1 Samuel 18:16) because he went out and came in before them, that is, he presided in the business of his country, civil as well as military, and have universal satisfaction. 3. He stirred him up to take all occasions of quarrelling with the Philistines and engaging them (1 Samuel 18:17; 1 Samuel 18:17), insinuating to him that hereby he would do good service to his prince (be thou valiant for me), and good service to his God (fight the Lord's battles), and a kindness to himself too, for hereby he would qualify himself for the honour he designed him, which was to marry his eldest daughter to him. This he had merited by killing Goliath, for it was promised by proclamation to him that should do that exploit (1 Samuel 17:25; 1 Samuel 17:25); but David was so modest as not to demand it, and now, when Saul proposed it, it was with design of mischief to him, to make him venture upon hazardous attempts, saying in his heart, Let the hand of the Philistines be upon him, hoping that he would some time or other be the death of him; yet how could he expect this when he saw that God was with him? 4. He did what he could to provoke him to discontent and mutiny, by breaking his promise with him, and giving his daughter to another when the time came that she should have been given to him, 1 Samuel 18:19; 1 Samuel 18:19. This was as great an affront as he could possibly put upon him, and touched him both in his honour and in his love. He therefore thought David's resentment of it would break out in some indecency or other, in word or deed, which might give him an advantage against him to take him off by the course of law. Thus evil men seek mischief. 5. When he was disappointed in his, he proffered him his other daughter (who it seems had a secret kindness for David, 1 Samuel 18:20; 1 Samuel 18:20), but with this design, that she might be a snare to him,1 Samuel 18:21; 1 Samuel 18:21. (1.) Perhaps he hoped that she would, even after her marriage to David, take part with her father against her husband, and give him an opportunity of doing David an unkindness. However, (2.) The conditions of the marriage, he hoped, would be his destruction; for (so zealous will Saul seem against the Philistines) the conditions of the marriage must be that he killed 100 Philistines, and, as proofs that those he had slain were uncircumcised, he must bring in their foreskins cut off; this would be a just reproach upon the Philistines, who hated circumcision as it was an ordinance of God; and perhaps David, in doing this, would the more exasperate them against him, and make them seek to be revenged on him, which was the thing that Saul desired and designed, much more than to be avenged on the Philistines: For Saul thought to make David fall by the Philistines,1 Samuel 18:25; 1 Samuel 18:25. See here, [1.] What cheats bad men put upon themselves. Saul's conscience would not suffer him, except when the evil spirit was actually upon him, to aim at David's life himself, for even he could not but conceive a horror at the thought of murdering such an innocent and excellent person; but he thought that to expose him designedly to the Philistines had nothing bad in it (Let not my hand be upon him, but the hand of the Philistines), whereas that malicious design against him was as truly murder before God as if he had slain him with his own hands. [2.] What cheats they put upon the world. Saul pretended extraordinary kindness for David even when he aimed at his ruin, and was actually plotting it: Thou shalt be my son-in-law, says he (1 Samuel 18:21; 1 Samuel 18:21), notwithstanding he hated him implacably. Perhaps David refers to this when (Psalms 55:21) he speaks of his enemy as one whose words were smoother than butter, but war was in his heart. It is probable that Saul's employing his servants to persuade David to enter into a treaty of a match with his daughter Michal (1 Samuel 18:22; 1 Samuel 18:22) arose from an apprehension that either his having cheated him about his elder daughter (1 Samuel 18:19; 1 Samuel 18:19) or the hardness of the terms he intended now to propose would make him decline it.