Matthew 13:13

"Therefore," saith He, "speak I to them in parables; because they seeing see not."

"It were meet then," one may say, "to have opened their eyes, if they see not." Nay, if the blindness were natural, it were meet to open them; but because it was a voluntary and self-chosen blindness, therefore He said not simply, "They see not," but, "seeing, they see not;" so that the blindness is of their own wickedness. For they saw even devils cast out, and said, "By Beelzebub, prince of the devils, He casteth out the devils." They heard Him guiding them unto God, and evincing His great unanimity with Him, and they say, "This man is not of God." Since then the judgment they pronounced was contrary both to their sight and hearing, therefore, saith He, the very hearing do I take away from them. For they derive thence no advantage, but rather greater condemnation. For they not only disbelieved, but found fault also, and accused, and laid snares. However, He saith not this, for it is not His will to give disgust in accusing them. Therefore neither at the beginning did He so discourse to them, but with much plainness; but because they perverted themselves, thenceforth He speaks in parables.

(Verse 13, 14.) Therefore, I speak to them in parables, because seeing, they do not see, and hearing, they do not hear, nor do they understand; so that the prophecy of Isaiah may be fulfilled in them, which says: You will indeed hear but never understand, and you will indeed see but never perceive. This applies to those who stand on the shore and are separated from Jesus, and despite the loud noise of the waves, they do not hear what is being said clearly; and the prophecy of Isaiah is fulfilled in them: You will indeed hear but never understand, and you will indeed see but never perceive (Isaiah 6:9). These things are prophesied about the crowds, which stand on the shore, and do not deserve to hear the word of God. Let us therefore approach with the disciples to Jesus, and let us ask him for the explanation of the parable, lest we seem to have ears and eyes in vain with the crowds.

This He says of those who were standing on the shore, and separated from Jesus, and who because of the dashing of the waves heard not distinctly what was said.

It was frequently his habit to make use of parables for at least two reasons: either because he would be speaking about things unseen, so as, by the parable, to make invisible things seen, so far as this was possible. Or it was because of the unworthiness of the hearers, when nothing beneficial would come to them from the things that were said. But there was another, third cause for parables. Frequently, when he was saying something by way of refutation, he would by means of a parable temper the harshness of the refutations for the sake of the hearers, as when he tells the parable of the vineyard and says that "he will miserably destroy those evil men" and "will rent out his vineyard to others." In saying these things to the Pharisees, Jesus clearly avoided harsh language.

And it should be noted, that not only what He spake, but also what He did, were parables, that is, signs of things spiritual, which He clearly shows when He says, That seeing they may not see; but words are heard and not seen.

Take heed. Here the problem is solved of those who say that some are evil by nature, or by God's intent. For they argue that Christ Himself said, "It is given unto you to know the mysteries, but to the Jews it is not given." But we say, with God, to those who speak such things, that God makes everyone by nature to understand what is necessary. For God "enlighteneth every man that cometh into the world" (Jn. 1:9). But it is our own will and inclination that casts us into darkness. This is made clear even here. For Christ says that although they see by nature, that is, they were created by God to understand, they by their own choice do not see. And hearing, that is, by nature created by God to hear and to understand, they by their own choice do not hear, nor do they understand. Tell me, did they not see the miracles of Christ? Yes, they did, but they made themselves blind and condemned Him. So this is the meaning of "seeing they see not." Then He brings forward the prophet as further witness to His argument.

Therefore I speak to them in parables etc. Here he applies this to the matter at hand; and he does two things. First, he applies it with regard to the Jews; secondly, with regard to the apostles, at but blessed are your eyes etc. And first he does two things. First, he applies it lest he seem to speak from hatred; secondly, he introduces an authority, at and in them is fulfilled the prophecy of Isaiah. Note that one who urges to salvation manifests his doctrine by his actions. Hence Acts 1:1: Jesus began to do and to teach. And John 15:24: if I had not done among them the works that no other man has done, they would not have sin. Likewise: if I had not spoken to them, they would not have sin. Hence before, he spoke to them without parables; but now, after the working of miracles, I speak to them in parables, because seeing they do not see. They see the miracles, but do not see the effect. Or thus: seeing, namely, outwardly, they do not see inwardly. Isaiah 43:8: bring forth the people that are blind and have eyes, that are deaf and have ears etc. And hearing they do not hear, neither do they understand. They hear the words by which they ought to be stirred to good, yet they do not hear, i.e., it has no effect; Ezekiel 2:7: if perhaps they will hear and be quiet. And Ezekiel 33:31: they turn them into a song of their mouth. And what is it that they do not see? That they do not understand; Psalm 81:5: they have not known nor understood; they walk on in darkness.