John Chrysostom

"For we are saved by hope," he says. Now since he had dwelt upon the promise of the things to come, and this seemed to pain the weaker hearer, if the blessings are all matter of hope; after proving before that they are surer than things present and visible, and discoursing at large on the gifts already given, and showing that we have received the first fruits of those good things, lest we should seek our all in this world, and be traitors to the nobility that faith gives us, he says, "For we are saved by hope." And this is about what …

Homily on Romans 14 ↗

Theophylact of Ohrid

Since he was speaking of future things, which many did not believe, he urges: do not doubt, O believer, concerning what I say; on the basis of what you have already received, be confident also concerning the future. Just as before, when God granted you great blessings, you brought nothing except faith alone, so now also, in hope of future blessings, make use of faith. For hope is truly hope precisely when its object is something unseen; for if one sees, then what is there to hope for?

Commentary on Romans ↗

Cyprian

It is the wholesome precept of our Lord and Master: "He that endureth," saith He, "unto the end, the same shall be saved; " and again, "If ye continue," saith He, "in my word, ye shall be truly my disciples; and ye shall know the truth, and the truth shall make you free." We must endure and persevere, beloved brethren, in order that, being admitted to the hope of truth and liberty, we may attain to the truth and liberty itself; for that very fact that we are Christians is the substance of faith and hope. …

Treatise IX On the Advantage of Patience ↗

Thomas Aquinas

Then when he says, "for we are saved," he proves what he had said with the following reason: hope is concerned with things not seen in the present but awaited in the future. But we have been saved through hope; therefore, we wait for the completion of salvation as something future. …

Commentary on Romans ↗