And it came to pass, when he had ended speaking to Saul, that the soul of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul.

And it cometh to pass, when he finisheth to speak unto Saul, that the soul of Jonathan hath been bound to the soul of David, and Jonathan loveth him as his own soul.

Now after David's talk with Saul was ended, the soul of Jonathan was joined with the soul of David, and David became as dear to him as his very life.

And it happened that, when he had completed speaking to Saul, the soul of Jonathan adhered to the soul of David, and Jonathan loved him like his own soul.

Was knit with the soul of David - The same forcible phrase occurs of Jacob's love for Benjamin (marginal reference). Jonathan's truly heroic character is shown in this generous love of David, and admiration of his great deed.

When he had made an end of speaking - These first five verses are omitted by the Septuagint. See the notes on the preceding chapter, 1 Samuel 17 (note).
Jonathan loved him as his own soul - The most intimate friendship subsisted between them; and they loved each other with pure hearts fervently. No love was lost between them; each was worthy of the other. They had a friendship which could not be affected with changes or chances, and which exemplified all that the ancients have said on the subject; Την φιλιαν ισοτητα ειναι, και μιαν ψυχην, τον φιλον ἑτερον αυτον; "Friendship produces an entire sameness; it is one soul in two bodies: a friend is another self."

And it came to pass, when he had made an end of speaking unto Saul, that the (a) soul of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul.
(a) His affection was fully bent toward him.

And it came to pass, when he had made an end of speaking unto Saul,.... In answer to his questions about his descent and family, and doubtless more things were talked of than are recorded:
that the soul of Jonathan was knit with the soul of David: he won his heart, made a conquest of his affections, these went out towards him, and cleaved unto him; such were the comeliness of his person, his graceful mien and deportment, his freedom and fluency of expression, his courage and undauntedness, joined with prudence, modesty, and integrity, that they strongly attached him to him:
and Jonathan loved him as his own soul; not only according to the excellency of David's soul, and the greatness of it, as that deserved respect and love, as Abarbinel suggests, but he loved him as he loved himself. There was a similarity in their persons, in their age, in the dispositions of their minds, in their wisdom, courage, modesty, faithfulness, and openness of soul, that attracted them to each other, that they became as another self; as one soul, as Aristotle speaks (r) of true friends: instances of very cordial friendship are given by Plutarch (s), as in Theseus and Pirithous, Achilles and Patroclus, Orestes and Pylades, Pythias and Damon, Epaminondas and Pelopidas; but none equal to this.
(r) Ethic. l. 9. c. 4, 9. So Porphyr. de Vita Pythagor. (s) Apud Patrick in loc.

The friendship of David and Jonathan was the effect of Divine grace, which produces in true believers one heart and one soul, and causes them to love each other. This union of souls is from partaking in the Spirit of Christ. Where God unites hearts, carnal matters are too weak to separate them. Those who love Christ as their own souls, will be willing to join themselves to him in an everlasting covenant. It was certainly a great proof of the power of God's grace in David, that he was able to bear all this respect and honour, without being lifted up above measure.

JONATHAN LOVES DAVID. (1-Samuel 18:1-4)
the soul of Jonathan was knit with the soul of David--They were nearly of an age. The prince had taken little interest in David as a minstrel; but his heroism and modest, manly bearing, his piety and high endowments, kindled the flame not of admiration only, but of affection, in the congenial mind of Jonathan.

The bond of friendship which Jonathan formed with David was so evidently the main point, that in 1-Samuel 18:1 the writer commences with the love of Jonathan to David, and then after that proceeds in 1-Samuel 18:2 to observe that Saul took David to himself from that day forward; whereas it is very evident that Saul told David, either at the time of his conversation with him or immediately afterwards, that he was henceforth to remain with him, i.e., in his service. "The soul of Jonathan bound itself (lit. chained itself; cf. Genesis 44:30) to David's soul, and Jonathan loved him as his soul." The Chethibh ויּאהבו with the suffix ו attached to the imperfect is very rare, and hence the Keri ויּאהבהוּ (vid., Ewald, 249, b., and Olshausen, Gramm. p. 469). לשׁוּב, to return to his house, viz., to engage in his former occupation as shepherd.

Loved him - For his excellent virtues and endowments, which shone forth both in his speeches and actions; for the service he had done to God and to his people; and for the similitude of their age and qualities.