God was teaching David lessons of trust. As Moses was trained for his work, so the Lord was fitting the son of Jesse to become the guide of His chosen people. In his watchcare for his flocks, he was gaining an appreciation of the care that the Great Shepherd has for the sheep of His pasture. (PP 644.1) MC VC

The lonely hills and the wild ravines where David wandered with his flocks were the lurking place of beasts of prey. Not infrequently the lion from the thickets by the Jordan, or the bear from his lair among the hills, came, fierce with hunger, to attack the flocks. According to the custom of his time, David was armed only with his sling and shepherd’s staff; yet he early gave proof of his strength and courage in protecting his charge. Afterward describing these encounters, he said: “When there came a lion, or a bear, and took a lamb out of the flock, I went out after him, and smote him, and delivered it out of his mouth: and when he arose against me, I caught him by his beard, and smote him, and slew him.” 1 Samuel 17:34, 35, R.V. His experience in these matters proved the heart of David and developed in him courage and fortitude and faith. (PP 644.2) MC VC

Even before he was summoned to the court of Saul, David had distinguished himself by deeds of valor. The officer who brought him to the notice of the king declared him to be “a mighty valiant man, and a man of war, and prudent in matters,” and he said, “The Lord is with him.” 1 Samuel 16:18. (PP 644.3) MC VC

When war was declared by Israel against the Philistines, three of the sons of Jesse joined the army under Saul; but David remained at home. After a time, however, he went to visit the camp of Saul. By his father’s direction he was to carry a message and a gift to his elder brothers and to learn if they were still in safety and health. But, unknown to Jesse, the youthful shepherd had been entrusted with a higher mission. The armies of Israel were in peril, and David had been directed by an angel to save his people. (PP 644.4) MC VC