22 But when Jesus perceived their thoughts, he answering said unto them, What reason ye in your hearts?
[AD 373] Ephrem the Syrian on Luke 5:21-24
While the Pharisee doubted that our Lord was a prophet, he was unwittingly pledging himself to the truth by thinking, “If this man were a prophet, he would know that this woman is a sinner.” Therefore, if our Lord indeed knows that she is a sinner, then, Pharisee, by your own reasoning he indeed is a prophet. And so our Lord did not hesitate to point out not only that she was a sinner but also that she had sinned very much, so that the testimony of his own mouth would trap the accuser. [The Pharisee] was one of those who had said, “Who can forgive sins but God alone?” Our Lord took this testimony from them, that whoever is able to forgive sin is God. From this point on, the struggle was for our Lord to show them whether or not he was able to forgive sin. And so he quickly healed the parts [of the body] that were visible, to confirm that he had forgiven the sins which were not visible.

[AD 397] Ambrose of Milan on Luke 5:17-26
Mighty is the Lord who pardons one man for the good deed of another, and while he approves of the one, forgives the other his sins. Why, O man, with thee does not thy fellowman prevail, when with God a servant has both the liberty to intercede in thy behalf, and the power of obtaining what he asks? If thou despairest of the pardon of heavy sins, bring the prayers of others, bring the Church to pray for thee, and at sight of this the Lord may pardon what otherwise He might deny to thee.

From the Pharisees themselves therefore the Son of God receives testimony. For it is both more powerful evidence when men confess unwillingly, and a more fatal error when they who deny are left to the consequence of their own assertions. Hence it follows, Who can forgive sins, but God only? Great is the madness of an unbelieving people, who though they have confessed that it is of God alone to forgive sins, believe not God when He forgives sins.

The Lord wishing to save sinners shows Himself to be God, by His knowledge of the secret thoughts; as it follows, But that ye may know.

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. (John 20:23.) But how does He not Himself forgive sins, Who has given to others the power of doing so? But the kings and princes of the earth when they acquit homicides, release them from their present punishment, but cannot expiate their crimes.

They behold him rising up, still disbelieving, and marvel at his departing; as it follows, And they were all amazed.

But they had rather fear the miracles of divine working, than believe them. As it follows, And they were filled with fear. But if they had believed they had not surely feared, but loved; for perfect love casteth out fear. But this was no careless or trifling cure of the paralytic, since our Lord is said to have prayed first, not for the petition's sake, but for an example.

Now let every sick person have those that will pray for his salvation, by whom the loosened joints of our life and halting steps may be renewed by the remedy of the heavenly word. Let there be then certain monitors of the soul, to raise the mind of man, though grown dull through the weakness of the external body, to higher things, by the aid of which being able again easily to raise and humble itself, it may be placed before Jesus worthy to be presented in the Lord's sight. For the Lord beholdeth the humble.

But the Lord, pointing out the full hope of resurrection, pardons the sins of the soul, sets aside the weakness of the flesh. For this is the curing of the whole man. Although then it is a great thing to forgive the sins of men, it is yet much more divine to give resurrection to the bodies, since indeed God is the resurrection. But the bed which is ordered to be taken up is nothing else but the human body.

Or it may reseek its own home, i. e. return to Paradise, for that is its true home, which first received man, and was lost not fairly, but by treachery. Rightly then is the soul restored thither, since He has come Who will undo the treacherous knot, and reestablish righteousness.

[AD 407] John Chrysostom on Luke 5:17-26
But they are to be admired who brought in the paralytic, since on finding that they could not enter in at the door, they attempted a new and untried way. As it follows, And when they could not find by what way they might bring him in, they went upon the housetop, &c. But unroofing the house they let down the couch, and place the paralytic in the midst, as it follows, And they let him down through the things. Some one may say, that the place was let down, from which they lowered the couch of the palsied man through the things.

(Hom. 29. in Matt.) But there was combined in this the faith also of the sufferer himself. For he would not have submitted to be let down, had he not believed.

(ubi sup.) Now if we suffer bodily, we are enough concerned to get rid of the hurtful thing; but when there has harm happened to the soul, we delay, and so are neither cured of our bodily ailments. Let us then remove the fountain of evil, and the waters of sickness will cease to flow. But from fear of the multitude, the Pharisees durst not openly expose their designs, but only meditated them in their hearts Hence it follows, And they began to reason, saying, Who is this which speaketh blasphemies?

(ubi sup.) If then you disbelieve the first, (i. e. the forgiveness of sins,) behold, I add another, seeing that I lay open your inmost thoughts. Again, another that I make whole the body of the palsied man. Hence He adds, Whether is it easier? It is very plain that it is easier to restore the body to health. For as the soul is far nobler than the body, so is the forgiveness of sins more excellent than the healing of the body. But since you believe not the former, because it is hid; I will add that which is inferior, yet more open, in order that thereby that which is secret may be made manifest. And indeed in addressing the sick man, He said not, I forgive thee thy sins, expressing His own power, but, Thy sins are forgiven thee. But they compelled Him to declare more plainly His own power to them, when He said, But that you may know.

(ubi sup.) He shows 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."

(ubi sup.) The Jews creep on by degrees, glorifying God, yet thinking Him not God, for His flesh stood in their way. But still it was no slight thing to consider Him the chief of mortal men, and to have proceeded from God.

[AD 444] Cyril of Alexandria on Luke 5:22
As if to say, O Pharisees, since ye say, Who can forgive sins, but God alone? I answer you, Who can search the secrets of the heart, but God alone, Who says by His prophet, I am the Lord, that searcheth the hearts, and trieth the reins. (Jer. 17:10.)

[AD 444] Cyril of Alexandria on Luke 5:22
But no sooner have they arrived at this height of daring, than he immediately shows that he is God, to convict them once more of intolerable impiety, "Why do you question in your hearts?" If you, therefore, Pharisee, say, "Who can forgive sins but God only?" I will also say to you, "Who can know hearts, and see the thoughts hidden in the depth of the understanding, but God only?" For he himself says somewhere by the voice of the prophets, "I, the Lord, search the minds and try the heart." David also said somewhere concerning both him and us, "He who fashions the hearts of them all." Therefore he who as God knows both the hearts and minds, as God also forgives sins.

[AD 735] Bede on Luke 5:22
For He said, answering them, "Why do you think in your hearts?" For to the same God who says, "I am, I am He who blots out your iniquities" (Isaiah 43), the wisest speaker says, "For You alone know the hearts of all the sons of men" (1 Kings 8). Therefore, He said, by the same majesty and power with which I observe your thoughts, I can also forgive men's sins. Understand from yourselves what the paralytic receives.

[AD 735] Bede on Luke 5:17-26
The Lord about to cure the man of his palsy, first loosens the chains of his sins, that He may show him, that on account of the bonds of his sins, he is punished with the loosening of his joints, and that unless the former are set free, he cannot be healed to the recovery of his limbs. Hence it follows, And when he saw their faith, &c.

For they say true, that no one can forgive sins but God, who yet forgives through those to whom He gives the power of forgiving. And therefore Christ is proved to be truly God, for He is able to forgive sins as God.

And the house where Jesus was is well described as covered with tiles, since beneath the beggarly covering of letters is found the spiritual power of grace.

[AD 1107] Theophylact of Ohrid on Luke 5:17-26
But mark, that after a man has been cleansed he is then worthy to offer this gift, namely, the body and blood of the Lord, which is united to the Divine nature.

Observe that on earth He forgives sins. For while we are on earth we can blot out our sins. But after that we are taken away from the earth, we shall not be able to confess, for the gate is shut.

[AD 1963] CS Lewis on Luke 5:20-24
I could never see how one escaped the dilemma aut deus aut malus homo by confining oneself to the Synoptics. Moderns do not seem startled, as contemporaries were, by the claim Jesus there makes to forgive sins; not sins against Himself, just sins. Yet surely, if they actually met it, they would feel differently. If Dr Pittenger told me that two of his colleagues had lost him a professorship by telling lies about his character and I replied, "I freely forgive them both", would he not think this an impertinence (both in the old and in the modern sense) bordering on insanity?