But, as the heathen poet said, "You may expel nature with a thunderbolt, but it always returns." The evil spirit, the demon of jealousy, returned to Saul. And strange to say, his jealousy was such that nothing was more fitted to excite it than eminent service to his country on the part of David. A new campaign had opened against the Philistines. David had had a splendid victory. He slew them with a great slaughter, so that they fled before him. We may be sure that in these circumstances the songs of the women would swell out in heartier chorus than ever. And in Saul's breast the old jealousy burst out again, and sprang to power. A fit of his evil spirit was on him, and David was playing on his harp in order to beguile it away. He sees Saul seize a javelin, he instinctively knows the purpose, and springs aside just as the javelin flies past and lodges in the wall. The danger is too serious to be encountered any longer. David escapes to his house, but hardly before messengers from Saul have arrived to watch the door, and slay him in the morning. Knowing her father's plot, Michal warns David that if he does not make his escape that night his life is sure to go. Michal lets him down through a window, and David makes his escape. Then, to give him a sufficient start, and prolong the time a little, she has recourse to one of those stratagems of which Rebecca, and Rahab, and Jeroboam's wife, and many another woman have shown themselves mistresses--she gets up a tale, and pretends to the messengers that David is sick. The men carry back the message to their master. There is a peculiar ferocity, an absolute brutality, in the king's next order, "Bring him up to me in the bed that I may slay him." Evidently he was enraged, and he either felt that it would be a satisfaction to murder David with his own hand when unable to defend himself, or he saw that his servants could not be trusted with the dastardly business. The messengers enter the house, and instead of David they find an image in the bed, with a pillow of goat's hair for his bolster. When Michal is angrily reproached by her father for letting him escape, she parries the blow by a falsehood--"He said unto me, Let me go; why should I kill thee?"