Gregory the Dialogist

It follows, And when he had thus spoken, he showed them his hands and his feet, on which indeed were clearly marked the prints of the nails. But according to John, He also showed them His side which had been pierced with the spear, that by manifesting the scar of His wounds He might heal the wound of their doubtfulness. But from this place the Gentiles are fond of raising up a calumny, as if He was not able to cure the wound inflicted on Him. …

Catena Aurea by Aquinas ↗

Bede

And when he had said this, he showed them his hands and feet. Not only the hands and feet, which bore the marks of the nails, but also the side which had been pierced by a spear, as attested by John, he showed. So that by showing the scars of his wounds, he might heal their wound of doubt and unbelief. …

On the Gospel of Luke ↗

Bonaventure

Likewise, for greater certainty he not only presented a palpable body, but also showed the scars of his body; whence he adds: And when he had said this, he showed them his hands and feet, namely with the scars. Now the Lord preserved these, as Bede says, for four reasons: "First, to establish faith in the resurrection. Second, so that when supplicating the Father on our behalf, he may always show what kind of death he endured. …

Commentary on Luke, Chapter 24 ↗