Here, I. David shelters himself in the cave of Adullam, Sa1 22:1. Whether it was a natural or artificial fastness does not appear; it is probable that the access to it was so difficult that David thought himself able, with Goliath's sword, to keep it against all the forces of Saul, and therefore buried himself alive in it, while he was waiting to see (and he says here, Sa1 22:3) what God would do with him. The promise of the kingdom implied a promise of preservation to it, and yet David used proper means for his own safety, otherwise he would have tempted God. He did not do any thing that aimed to destroy Saul, but only to secure himself. He that might have done great service to his country as a judge or general is here shut up in a cave, and thrown by as a vessel in which there was no pleasure. We must not think it strange if sometimes shining lights be thus eclipsed and hidden under a bushel. Perhaps the apostle refers to this instance of David, among others, when he speaks of some of the Old Testament worthies that wandered in deserts, in dens and caves of the earth, Heb 11:38. It was at this time that David penned Psa 142:1-7, which is entitled, A prayer when David was in the cave; and there he complains that no man would know him and that refuge failed him, but hopes that shortly the righteous would compass him about.

II.Thither his relations flocked to him, his brethren and all his father's house, to be protected by him, to give assistance to him, and to take their lot with him. A brother is born for adversity. Now, Joab, and Abishai, and the rest of his relations, came to him, to suffer and venture with him, in hopes shortly to be advanced with him; and they were so. The first three of his worthies were those that first owed him when he was in the cave, Ch1 11:15, etc.

III.Here he began to raise forces in his own defence, Sa1 22:2. He found by the late experiments he had made that he could not save himself by flight, and therefore was necessitated to do it by force, wherein he never acted offensively, never offered any violence to his prince nor gave any disturbance to the peace of the kingdom, but only used his forces as a guard to his own person. But, whatever defence his soldiers were to him, they did him no great credit, for the regiment he had was made up not of great men, nor rich men, nor stout men, no, nor good men, but men in distress, in debt, and discontented, men of broken fortunes and restless spirits, that were put to their shifts, and knew not well what to do with themselves. When David had fixed his headquarters in the cave of Adullam, they came and enlisted themselves under him to the number of about 400. See what weak instruments God sometimes makes use of, by which to bring about his own purposes. The Son of David is ready to receive distressed souls, that will appoint him their captain and be commanded by him.

IV.He took care to settle his parents in a place of safety. No such place could he find in all the land of Israel while Saul was so bitterly enraged against him and all that belonged to him for his sake; he therefore goes with them to the king of Moab, and puts them under his protection, Sa1 22:3, Sa1 22:4. Observe here, 1. With what a tender concern he provided for his aged parents. It was not fit they should be exposed either to the frights or to the fatigues which he must expect during his struggle with Saul (their age would by no means bear such exposure); therefore the first thing he does is to find them a quiet habitation, whatever became of himself. Let children learn from this to show pity at home and requite their parents (Ti1 5:4), in every thing consulting their ease and satisfaction. Though ever so highly preferred, and ever so much employed, let them not forget their aged parents. 2. With what a humble faith he expects the issue of his present distresses: Till I know what God will do for me. He expresses his hopes very modestly, as one that had entirely cast himself upon God and committed his way to him, expecting a good issue, not from his own arts, or arms, or merits, but from what the wisdom, power, and goodness of God would do for him. Now David's father and mother forsook him, but God did not, Psa 27:10.

V.He had the advice and assistance of the prophet Gad, who probably was one of the sons of the prophets that were brought up under Samuel, and was by him recommended to David for his chaplain or spiritual guide. Being a prophet, he would pray for him and instruct him in the mind of God; and David, though he was himself a prophet, was glad of his assistance. He advised him to go into the land of Judah (Sa1 22:5), as one that was confident of his own innocency, and was well assured of the divine protection, and was desirous, even in his present hard circumstances, to do some service to his tribe and country. Let him not be ashamed to own his own cause nor decline the succours that would be offered him. Animated by this word, there he determined to appear publicly. Thus are the steps of a good man ordered by the Lord.

The cave Adullam - This was in the tribe of Judah, and, according to Eusebius and Jerome, ten miles eastward of what they call Eleutheropolis.

David therefore departed from thence,.... From Gath, being driven by Achish from his court, and let go by his servants, and glad he was of the deliverance:

and escaped to the cave Adullam; which was no doubt near to a city of the same name in the tribe of Judah, of which See Gill on Jos 15:35; this being a strong place, and in his own tribe, he might hope to be in greater safety; here he penned his hundred forty second psalm, see Psa 142:1,

and when his brethren and all his father's house heard it; that he was come thither:

they went down thither to him; to visit and comfort him, counsel and assist him all they could; and chiefly to secure themselves from the rage and malice of Saul, who they might fear would fall upon them, and avenge himself on them for David's sake.