We preach to you glad tidings. He doth now challenge to himself the office and honor of an apostle, that he may be heard as a lawful minister of God. And he saith the sum of the embassage enjoined him is, that that is revealed and given in their time which was promised in times past. And in few words doth he comprehend many and great matters. First, he giveth them to understand that he bringeth in nothing which is new, or contrary to the law and prophets, but that he did reveal the fulfilling of that doctrine which they themselves did confess, and were persuaded to have been delivered by God. Whereupon it followeth that they cannot refuse that which he offereth them, but they shall break the covenant made with the fathers by God, so much as in them shall lie; secondly, he commandeth the faithfulness of God, because it doth now in very deed appear that there was nothing promised in times past unadvisedly or in vain; but he doth chiefly extol the greatness of the grace given at length in Christ. For we must note the comparison between them and the fathers, when he saith, that they had gotten that which was promised to the fathers. For the more liberally the grace of God is poured out upon them, the more filthy shall their unthankfulness be, if they shall despise or loathe that inestimable good thing. For what else were this, but to cast down at their feet a treasure even reached out to them, that they might take hold thereof, and so consequently laid in their lap, the hope whereof was reverently embraced by the fathers, when it was showed them afar off, and which they did foster [1] during their whole life. But some man may ask this question concerning those who lived under the law, whether even they were not made partakers of the promises? I answer, that there is such a society of the same grace among us which doth not hinder the long distance. But this was Paul's meaning, that their faith stood, as it were, in doubt until Christ appeared, in whom all the promises of God are yea and amen; as he teacheth, (2-Corinthians 1:19, 20.) Therefore we be the heirs of the same kingdom of heaven, and partakers of the same spiritual good things, which God bestoweth upon his children; also, God gave to them some taste of his love in this life, as we taste him now. But Christ, who is the substance of all good things and of eternal life, was only promised to them, but he is given to us; and they desired him, as being far off; we enjoy him, being present.

Footnotes

1 - "Patienter foverint," patiently foster.

And we - We who are here present. Paul and Barnabas.
Declare unto you glad tidings - We preach the gospel the good news. To a Jew, nothing could be more grateful intelligence than that the Messiah had come; to a sinner convinced of his sins nothing can be more cheering than to hear of a Saviour.
The promise - The promise here refers to all that had been spoken in the Old Testament respecting the advent, sufferings, death, and resurrection of Christ.

We declare unto you glad tidings - We proclaim that Gospel to you which is the fulfillment of the promise made unto the fathers.

And we declare unto you glad tidings,.... The whole of the Gospel, concerning the incarnation, obedience, sufferings, death, and resurrection of Christ, and the benefits arising from thence, as peace, pardon, righteousness, life, and salvation; all which are good news and glad tidings to sensible sinners; and which are declared and published by the ministers of the Gospel, according to the commission given them, as here by Paul and Barnabas:
how that the promise which was made unto the fathers; not barely and solely that which respects the resurrection of Christ, but the mission of him, the exhibition of him in human nature, his incarnation, his work and business he was to do, namely, to obtain salvation for his people; it chiefly regards the promise of his coming into the world to do the will of God, which promise was made to Abraham, Isaac, Jacob, and Judah, Genesis 22:18.

The resurrection of Christ was the great proof of his being the Son of God. It was not possible he should be held by death, because he was the Son of God, and therefore had life in himself, which he could not lay down but with a design to take it again. The sure mercies of David are that everlasting life, of which the resurrection was a sure pledge; and the blessings of redemption in Christ are a certain earnest, even in this world. David was a great blessing to the age wherein he lived. We were not born for ourselves, but there are those living around us, to whom we must study to be serviceable. Yet here is the difference; Christ was to serve all generations. May we look to Him who is declared to be the Son of God by his resurrection from the dead, that by faith in him we may walk with God, and serve our generation according to his will; and when death comes, may we fall asleep in him, with a joyful hope of a blessed resurrection.