But if we hope for what we do not see, we wait for it with patience.
25. If then what we see not, etc. This is an argument derived from what the antecedent implies; for patience necessarily follows hope. For when it is grievous to be without the good you may desire, unless you sustain and comfort yourselves with patience, you must necessarily faint through despair. Hope then ever draws patience with it.
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
But if we hope for that we see not,.... Whether it be the hour of death, or the second coming of Christ, or the resurrection of the dead, and eternal glory; all which are unseen by us, and to be hoped for: then do we with patience wait for it; as that which is certain and real, as something valuable, which will be satisfying, and...