Here is, 1. Jonathan's faithful performance of his promise to give David notice of the success of his dangerous experiment. He went at the time and to the place appointed (Sa1 20:35), within sight of which he knew David lay hid, sent his footboy to fetch his arrows, which he would shoot at random (Sa1 20:36), and gave David the fatal signal by shooting an arrow beyond the lad (Sa1 20:37): Is not the arrow beyond thee? That word [beyond] David knew the meaning of better than the lad. Jonathan dismissed the lad, who knew nothing of the matter, and, finding the coast clear and no danger of a discovery, he presumed upon one minute's personal conversation with David after he had bidden him flee for his life. 2. The most sorrowful parting of these two friends, who, for aught that appears, never came together again but once, and that was by stealth in a wood, Sa1 23:16. (1.) David addressed himself to Jonathan with the reverence of a servant rather than the freedom of a friend: He fell on his face to the ground, and bowed himself three times, as one deeply sensible of his obligations to him for the good services he had done him. (2.) They took leave of each other with the greatest affection imaginable, with kisses and tears; they wept on each other's neck till David exceeded, Sa1 20:41. The separation of two such faithful friends was equally grievous to them both, but David's case was the more deplorable; for, when Jonathan was returning to his family and friends, David was leaving all his comforts, even those of God's sanctuary, and therefore his grief exceeded Jonathan's, or perhaps it was because his temper was more tender and his passions were stronger. (3.) They referred themselves to the covenant of friendship that was between them, both of them comforting themselves with this in this mournful separation: "We have sworn both of us in the name of the Lord, for ourselves and our heirs, that we and they will be faithful and kind to each other from generation to generation." Thus, while we are at home in the body and absent from the Lord, this is our comfort, that he has made with us an everlasting covenant.

Until David exceeded - David's distress must, in the nature of things, be the greatest. Besides his friend Jonathan, whom he was now about to lose for ever, he lost his wife, relatives, country; and, what was most afflictive, the altars of his God, and the ordinances of religion.
Saul saw David's growing popularity, and was convinced of his own maladministration. He did not humble himself before God, and therefore became a prey to envy, pride, jealousy, cruelty, and every other malevolent temper. From him David had every thing to fear, and therefore he thought it was safer to yield to the storm, than attempt to brave it; though he could have even raised a very powerful party in Israel, had he used the means which were so much in his power. But as he neither sought not affected the kingdom, he left it to the providence of God to bring him in by such means, at such a way, and in such a time, as was most suited to his godly wisdom. He that believeth shall not make haste: God's way and time are ever the best; and he who, even in God's way, runs before he is sent, runs at random; runs without light, and without Divine strength.
Feeble, therefore, must be his own might, his own counsel, and his own wisdom: though he encompass himself with his own sparks yet this hath he at the Lord's hand - he shalt lie down in sorrow.

And as soon as the lad was gone,.... Which David could observe from his lurking place:

David arose out of a place toward the south; to the south of the field in which he was hid, or to the south of the stone Ezel, near which he was; and so the Targum,"and David arose from the side of the stone Atha, which was towards the south;''Jonathan shooting his arrows to the north of it, lest the lad should have discovered David when he ran for them: and fell on his face to the ground; in reverence of Jonathan, as the son of a king, and in respect to him as his friend, who had so faithfully served him, and was so concerned to save his life:

and bowed himself three times: this was before he fell prostrate on the ground. Abarbinel observes, that bowing three; times was fit and proper to be done to a king; once at the place from whence they first see him, the second time in the middle of the way to him, and the third time when come to him; but though this may have been a custom in more modern times, it is a question whether it obtained so early; however it is certain bowing was as ancient, and therefore Xenophon (z) is mistaken in ascribing it to Cyrus as the first introducer of this custom; and be it that he was the first that began it among the Persians, it was in use with others before, as this behaviour of David shows:

and they kissed one another; as friends about to part:

and wept one with another: as not knowing whether they should ever see each other's face any more:

until David exceeded; in weeping more than Jonathan; he having more to part with, not only him his dear friend, but his wife and family, and other dear friends and people of God, and especially the sanctuary and service of God, which of all things lay nearest his heart, and most distressed him; see Sa1 26:19; and many of his psalms on this occasion. Ben Gersom suggests that he wept more than was meet, through too much fear of Saul; but that seems not to be the case.

(z) Cyropaedia, l. 8. c. 23.

JONATHAN AND DAVID LOVINGLY PART. (Sa1 20:41-42)

David . . . fell on his face to the ground, and bowed three times--a token of homage to the prince's rank; but on a close approach, every other consideration was sunk in the full flow of the purest brotherly affection.