John Chrysostom — as excerpted in the Catena Aurea on Luke 5:17-26

“(ubi sup.) He shews the pardon of sins by the healing of the body. Hence it follows, He says unto the sick of the palsy, I say unto thee, Rise. But He manifests the healing of the body by the carrying of the bed, that so that which took place might be accounted no shadow. Hence it follows, Take up thy bed. As if He said, “I was willing through thy suffering to cure those who think that they are in health, while their souls are sick, but since they are unwilling, go and correct thy household.””