12 “And He went away again beyond Jordan, into the place where John at first baptized; and there He abode. And many resorted unto Him, and said, John, indeed, did no miracle.” You remember what was said of John, that he was a light, and bore witness to the day. Why, then, say these among themselves, “John did no miracle”? John, they say, signalized himself by no miracle; he did not put devils to flight, he drove away no fever, he enlightened not the blind, he raised not the dead, he fed not so many thousand men with five or seven loaves, he walked not upon the sea, he commanded not the winds and the waves. None of these things did John, and in all he said he bore witness to this man. By lamp-light we may advance to the day. “John did no miracle: but all things that John spoke of this man were true.” Here are those who apprehended in a different way from the Jews. The Jews wished to apprehend one who was departing from them, these apprehended one who remained with them. In a word, what is it that follows? “And many believed on Him.”
Source: Tractates on the Gospel of John (New Advent)