Here, I. David makes a representation to Jonathan of his present troubles. While Saul lay bound by his trance at Naioth David escaped to the court, and got to speak with Jonathan. And it was happy for him that he had such a friend at court, when he had such an enemy on the throne. If there be those that hate and despise us, let us not be disturbed at that, for there are those also that love and respect us. God hath set the one over against the other, and so must we. Jonathan was a friend that loved at all times, loved David as well now in his distress, and bade him as welcome into his arms, as he had done when he was in his triumph (Sa1 18:1), and he was a brother that was born for adversity, Pro 17:17. Now, 1. David appeals to Jonathan himself concerning his innocency, and he needed not say much to him for the proof of it, only he desired him that if he knew of any just offence he had given his father he would tell him, that he might humble himself and beg his pardon: What have I done? Sa1 20:1. 2. He endeavors to convince him that, notwithstanding his innocency, Saul sought his life. Jonathan, from a principal of filial respect to his father, was very loth to believe that he designed or would ever do so wicked a thing, Sa1 20:2. He the rather hoped so because he knew nothing of any such design, and he had usually been made privy to all his counsels. Jonathan, as became a dutiful son, endeavored to cover his father's shame, as far as was consistent with justice and fidelity to David. Charity is not forward to think evil of any, especially of a parent, Co1 13:5. David therefore gives him the assurance of an oath concerning his own danger, swears the peace upon Saul, that he was in fear of his life by him: "As the Lord liveth, than which nothing more sure in itself, and as thy soul liveth, than which nothing more certain to thee, whatever thou thinkest, there is but a step between me and death," Sa1 20:3. And, as for Saul's concealing it from Jonathan, it was easy to account for that; he knew the friendship between him and David, and therefore, though in other things he advised with him, yet not in that. None more fit than Jonathan to serve him in every design that was just and honourable, but he knew him to be a man of more virtue than to be his confidant in so base a design as the murder of David.

II.Jonathan generously offers him his service (Sa1 20:4): Whatsoever thou desirest, he needed not insert the proviso of lawful and honest (for he knew David too well to think he would ask any thing that was otherwise), I will even do it for thee. This is true friendship. Thus Christ testifies his love to us: Ask, and it shall be done for you; and we must testify ours to him by keeping his commandments.

III.David only desires him to satisfy himself, and then to satisfy him whether Saul did really design his death or no. Perhaps David proposed this more for Jonathan's conviction than his own, for he himself was well satisfied. 1. The method of trial he proposed was very natural, and would certainly discover how Saul stood affected to him. The two next days Saul was to dine publicly, upon occasion of the solemnities of the new moon, when extraordinary sacrifices were offered and feasts made upon the sacrifices. Saul was rejected of God, and the Spirit of the Lord had departed from him, yet he kept up his observance of the holy feasts. There may be the remains of external devotion where there is nothing but the ruins of real virtue. At these solemn feasts Saul had either all his children to sit with him, and David had a seat as one of them, or all his great officers, and David had a seat as one of them. However it was, David resolved his seat should be empty (and that it never used to be at a sacred feast) those two days (Sa1 20:5), and he would abscond till the solemnity was over, and put it upon this issue: if Saul admitted an excuse for his absence, and dispensed with it, he would conclude he had changed his mind and was reconciled to him; but if he resented it, and was put into a passion by it, it was easy to conclude he designed him a mischief, since it was certain he did not love him so well as to desire his presence for any other end than that he might have an opportunity to do him a mischief, Sa1 20:7. 2. The excuse he desired Jonathan to make for his absence, we have reason to think, was true, that he was invited by his elder brother to Bethlehem, his own city, to celebrate this new moon with his relations there, because, besides the monthly solemnity in which they held communion with all Israel, they had now a yearly sacrifice, and a holy feast upon it, for all the family, Sa1 20:6. They kept a day of thanksgiving in their family for the comforts they enjoyed, and of prayer for the continuance of them. By this it appears that the family David was of was a very religious family, a house that had a church in it. 3. The arguments he used with Jonathan to persuade him to do this kindness for him were very pressing, Sa1 20:8. (1.) That he had entered into a league of friendship with him, and it was Jonathan's own proposal: Thou hast brought thy servant into a covenant of the Lord with thee. (2.) That he would by no means urge him to espouse his cause if he was not sure that it was a righteous cause: "If there be iniquity in me, I am so far from desiring or expecting that the covenant between us should bind thee to be a confederate with me in that iniquity that I freely release thee from it, and wish that my hand may be first upon me: Slay me thyself." No honest man will urge his friend to do a dishonest thing for his sake.

To-morrow is the new moon - The months of the Hebrews were lunar months, and they reckoned from new moon to new moon. And as their other feasts, particularly the passover, were reckoned according to this, they were very scrupulous in observing the first appearance of each new moon. On these new moons they offered sacrifices, and had a feast; as we learn from Num 10:10; Num 28:11. And we may suppose that the families, on such occasions, sacrificed and feasted together. To this David seems to refer; but the gathering together all the families of a whole tribe seems to have taken place only once in the year. There is a yearly sacrifice there for all the family, Sa1 20:6.

If he say thus, it is well,.... It is very well, it is very good and right in him to do so:

thy servant shall have peace; it will be a token that the wrath of the king was removed, and that his mind was well disposed towards David, and things had taken an happy turn, and would issue in his peace and prosperity:

but if he be very wroth; with Jonathan for giving leave, and with David for going away:

then be sure that evil is determined by him; that he has a settled obstinate malice in his heart, which is become implacable and inveterate, and confirmed in him; and that it is a determined point with him to slay David if possible, which he hoped to have an opportunity of doing at that time in which he was disappointed, and caused such wrath in him.

David said unto Jonathan, Behold, to-morrow the new moon, and I should not fail to sit with the king at meat--The beginning of a new month or moon was always celebrated by special sacrifices, followed by feasting, at which the head of a family expected all its members to be present. David, both as the king's son-in-law and a distinguished courtier, dined on such occasions at the royal table, and from its being generally known that David had returned to Gibeah, his presence in the palace would be naturally expected. This occasion was chosen by the two friends for testing the king's state of feeling. As a suitable pretext for David's absence, it was arranged that he should visit his family at Beth-lehem, and thus create an opportunity of ascertaining how his non-appearance would be viewed. The time and place were fixed for Jonathan reporting to David; but as circumstances might render another interview unsafe, it was deemed expedient to communicate by a concerted signal.