I will make an everlasting covenant . . .—The words find their explanation in the “new covenant” of Jeremiah 31:31, Luke 22:20, but those which follow show that it is thought of as the expansion and completion of that which had been made with David (2Samuel 7:12-17; Psalm 89:34-35), as the representative of the true King, whom Isaiah now contemplates as identical with the “servant of the Lord.” For “sure mercies” read the unfailing loving-kindnesses, which were “of David,” as given to him and to his seed by Jehovah.

And I will make an everlasting covenant with you - On the word 'covenant,' see the notes at Isaiah 28:18; Isaiah 42:6; Isaiah 49:8. Here it means that God would bind himself to be their God, their protector, and their friend. This covenant would be made with all who would come to him. It would not be with the nation of the Jews, as such, or with any community, as such, but it would be with all who should embrace the offers of life and salvation.

Even the sure mercies of David - I will confirm to you, and fulfill in you, the solemn promises made to David. The transaction here referred to is that which is celebrated in Psalm 89:2-4 :

For I have said, mercy shall be built up forever;

Thy faithfulness hast thou established in the very heavens.

I have made a covenant with my chosen,

I have sworn unto David my servant,

Thy seed will I establish forever,

And build up thy throne to all generations.

A kingdom had thus been promised to David, and he had been assured that the true religion should flourish among those who were to succeed him in Israel. The prophet here says that this solemn promise. would be fulfilled in those who should embrace the Messiah, and that God would ratify with them this covenant. The word rendered here 'mercies' (חסד chesed), properly means kindness, goodwill, pity, compassion; then goodness, mercy, grace. The word rendered 'sure,' denotes that which is established, or confirmed; that in which confidence may be placed. The whole expression denotes that the covenant made with David was one which promised great favors, and was one which was not to be abrogated, but which was to be perpetual. With all who embraced the Messiah, God would enter into such an unchanging and unwavering covenant - a covenant which was not to be revoked.

everlasting covenant—(Jer 32:40; 2Sa 23:5).

with you … David—God's covenant is with the antitypical David, Messiah (Eze 34:23), and so with us by our identification with Him.

sure—answering to "everlasting," irrevocable, unfailing, to be relied on (Ps 89:2-4, 28, 29, 34-36; Jer 33:20, 21; 2Sa 7:15, 16; 2Co 1:18-20).

mercies of David—the mercies of grace (Isa 63:7; Joh 1:16) which I covenanted to give to David, and especially to Messiah, his antitype. Quoted in Ac 13:34.

hear, and your soul shall live; or, "that your soul may live (f)"; spiritually and eternally. There must be life before hearing; men must be made alive before they can come to Christ spiritually, or hear his word so as to have a spiritual understanding of it, or savingly believe it; but the meaning is, that by coming and hearing the word of the Lord, they should have something to live upon, good, solid, substantial food; and that they should live comfortably and plentifully, and that for ever. It was reckoned a great absurdity in Sunlungus, a Chinese philosopher, who asserted (g) that a man had three ears, one different from the two that are seen; it is true in a spiritual sense.

And I will make an everlasting covenant with you; which is to be understood not of the covenant of works, nor of the covenant of circumcision, nor of the Sinai covenant; but of the covenant of grace, which is an "everlasting one"; it is from everlasting, being founded in the everlasting love of God, is according to his eternal purposes; Christ is the Mediator of it, who as such was set up from everlasting, and the promises and blessings of it were so early put into his hands; and it will continue to everlasting, sure, firm, unalterable, and immovable. This, properly speaking, was made with Christ from all eternity, and his people in him; it is made manifest to them at conversion, when they are shown it, and their interest in it; when God makes himself known to them as their covenant God, and Christ as the Mediator of it is revealed to them; when the Lord puts his Spirit into them, and makes them partakers of the grace of it; shows them their interest in the blessings of it, and opens and applies the promises of it unto them; and these are made manifest in the ministration of the Gospel, and in the administration of ordinances: even "the sure mercies of David"; that is, the Messiah, the son of David, and his antitype, whence he is often called by his name, Ezekiel 34:23, and so Aben Ezra, Kimchi, and others (h), interpret it. The blessings of the covenant are called "mercies", because they spring from the mercy of God, as redemption, pardon of sin, regeneration, salvation, and eternal life; and they are the mercies of David, or of Christ, for the promises of them were made to him, and the things themselves put into his hands, and are ratified and confirmed by his blood, and through him come to his people: and these are "sure", firm, and steadfast, through the faithfulness and holiness of God, who has given them to Christ; through being in a covenant ordered in all things and sure; and also being in the hands of Christ, in whom the promises are yea and amen, and the blessings sure to all the seed; see Acts 13:34, Acts 13:34.

(f) "ut vivat", Junius & Tremellius, Vitringa. (g) Martin. Hist. Sinic. l. 4. p. 170. (h) Abarbinel, Mashmiah Jeshuah, fol. 26, 1.

(f) The same covenant which through my mercy I ratified and confirmed to David, that it would be eternal, 2Sa 7:13, Ac 13:34.