Hilary of Poitiers

By the children are meant the Prophets, who preached as children in singleness of meaning, and in the midst of the synagogue, that is in the market-place, reprove them, that when they played to those to whom they had devoted the service of their body, they had not obeyed their words, as the movement of the dancers are regulated by the measures of the music. For the Prophets invited them to make confession by song to God, as it is contained in the song of Moses, of Isaiah, or of David.