8-10. David went out, and fought with the Philistines, and slew them with a great slaughter—A brilliant victory was gained over the public enemy. But these fresh laurels of David reawakened in the moody breast of Saul the former spirit of envy and melancholy. On David's return to court, the temper of Saul became more fiendish than ever; the melodious strains of the harp had lost all their power to charm; and in a paroxysm of uncontrollable frenzy he aimed a javelin at the person of David—the missile having been thrown with such force that it pierced the chamber wall. David providentially escaped; but the king, having now thrown off the mask and being bent on aggressive measures, made his son-in-law's situation everywhere perilous.

     11, 12. Saul sent messengers unto David's house, to watch him, and to slay him—The fear of causing a commotion in the town, or favoring his escape in the darkness, seemed to have influenced the king in ordering them to patrol till the morning. This infatuation was overruled by Providence to favor David's escape; for his wife, secretly apprised by Jonathan, who was aware of the design, or by spying persons in court livery watching the gate, let him down through a window (see on Jos 2:15).