Methodius of Olympus

Whence we, having received Christ, saying, "I am the truth," know that shadows and figures have ceased; and we hasten on to the truth, proclaiming its glorious images. For now we know "in part," and as it were "through a glass," since that which is perfect has not yet come to us; namely, the kingdom of heaven and the resurrection, when "that which is in part shall be done away." For then will all our tabernacles be firmly set up, when again the body shall rise, with bones again joined and compacted with flesh. …

Methodius Discourse IX. Tusiane ↗

Augustine of Hippo

But, as this faith, which works by love, begins to penetrate the soul, it tends, through the vital power of goodness, to change into sight, so that the holy and perfect in heart catch glimpses of that ineffable beauty whose full vision is our highest happiness.… We begin in faith, we are perfected in sight.

Enchiridion 1.5 ↗

Ambrose of Milan

For now we know in part and understand in part. But then we shall be able to comprehend what is perfect, when not the shadow but the reality of the majesty and eternity of God shall begin to shine and to reveal itself unveiled before our eyes.

On the Death of Satyrus 2.32 ↗

Thomas Aquinas

Secondly, he proves the major proposition, saying: But when the perfect comes, the imperfect will pass away, i.e., every imperfection will be taken away. Of this perfection it says in 1 Pt (5:10): "After you have suffered a little while, he will restore and strengthen you." But according to this it seems that even charity will pass away through future glory, because it is imperfect in the present life as compared with the life of glory. The answer is that imperfection is related in two ways to that which is called imperfect. …

Commentary on 1 Corinthians ↗