Analysis
Lapide believes that "this generation" refers to the Scribes and Pharisees, so that the parable speaks of them not being induced to change their life and be converted, either by "the example of the austere life of John, or by the less stern life of Christ." He states that this dancing was not the pleasure-based one that we are normally used to, but rather a spiritual dance, like St. Paul when in Phil 3:13, he wrote that for our sakes, "he stretched himself out, and forgetting the things which were behind, and reaching forth unto those which were before, he strove for the prize of Christ." There also seems to be an allusion to Ezek. 33:32, "You are to them as a song of music which is very sweetly sung. And they hear your words, but they will not do them." So as MacEvilly writes, "we have sung the song of the New Testament, and you have not danced. We have lamented and you have not repented."
Hilary of Poitiers: " The whole of this speech is a reproach of unbelief, and arises out of the foregoing complaint; that the stiff-necked people had not learned by two different modes of teaching."
Chrysostom: " Whence He puts this question, showing that nothing had been omitted that ought to be done for their salvation, saying, To whom shall I liken this generation?"
Glossa Ordinaria: "By this generation He means the Jews together with Himself and John. As though He had said; John is thus great; but ye would believe neither him nor Me, and therefore to whom shall I liken you?"
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