John Chrysostom
Indeed, when they came there, they immediately remembered John. Therefore they said that “John did no sign.” Otherwise, what occasion would there have been to say this?
But since the place brought the Baptist to their remembrance, his testimony also came to mind. And see what irrefutable conclusions they form. John, they say, did no sign, but This Man does. Therefore His superiority is evident from this.
If we believed John, though he did no sign, then much more ought we to believe Christ. Then, since John had borne witness to Christ, they added something further.
They did this lest John, because he had done no sign, should seem unworthy to give testimony. Though he did not perform even one sign, yet in everything he said about Christ, he was true.
By this they showed that Christ did not become worthy of belief through John. Rather, John became worthy of belief through the works of Christ.