Not only that, but we ourselves, who have the firstfruits of the Spirit, groan inwardly as we wait eagerly for our adoption as sons, the redemption of our bodies.
23. And not only so, etc. There are those who think that the Apostle intended here to exalt the dignity of our future blessedness, and by this proof, because all things look for it with ardent desire; not only the irrational parts of creation, but we also who have been regenerated by the Spirit of God.
In these words the apostle describes a fourth illustrious branch of the happiness of believers, namely, a title to the future glory. This is fitly annexed to our sonship; for as the adoption of sons entitles us to that glory, so the disposition of sons fits and prepares us for it. If children, then heirs, Rom 8:17.
Commenting on Romans 8:17-25
And not only they, but ourselves also,.... Not only they Gentiles, but we Jews likewise: which have the firstfruits of the Spirit: meaning either the apostles, who were all Jews, and who most of them received the extraordinary gifts of the Spirit on the day of "Pentecost", which was the day of the firstfruits, Num 28:26; and to which there seems to be an allusion...