Ambrose of Milan

Nor is there any delay, health is present; there is but one moment both of words, and healing. Hence it follows, And immediately he rose. From this fact it is evident, that the Son of man has power on earth to forgive sins; He said this both for Himself and us. For He as God made man, as the Lord of the law, forgives sins; we also have been chosen to receive from Him the same marvellous grace. For it was said to the disciples, Whose sins ye remit, they are remitted unto them. …

Catena Aurea by Aquinas ↗

Bede

And immediately rising up before them, he took up the bed on which he lay, and went to his house glorifying God, etc. Wondrous is the power of divine potency, where no delay of time intervenes, the health commanded by the Savior follows swiftly. Rightly those who were present, condemning the darts of blasphemy, converted their astonished hearts to the praise of such great majesty.

On the Gospel of Luke ↗

Bonaventure

There is lastly subjoined the strengthening of the weakened members in what follows: And immediately rising up before them, etc. For the members of the paralytic were strengthened by the word of Christ with respect to the sustaining, operative, and motive power. …

Commentary on Luke, Chapter 5 ↗