John Chrysostom
Why, then, when the disciples of Jesus began to baptize, did John not cease doing this? Why did he also continue to baptize, and to do so until his very imprisonment?
The words, "For John also was baptizing in Aenon," and the following words, "For John had not yet been cast into prison," show precisely that he had not yet ceased baptizing.
Why, you ask, did he keep baptizing until then? If he had stopped baptizing when the disciples of Jesus began, would he not thereby have shown their superiority?
Why, then, did he continue to baptize? So that he would not stir up greater envy and rivalry in his own disciples.
John had cried out a thousand times, always yielded the first place to Christ, and acknowledged himself to be less than He. Yet he did not persuade them to follow Christ.
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If he had also ceased baptizing, he would have stirred up their rivalry all the more. Therefore Christ also began especially to preach when John had been killed.
I think John's death was permitted, and came so quickly, so that the attention of all the people might be turned toward Christ. Then opinions would no longer be divided between the two.
Yet even while baptizing, John did not cease exhorting and showing the great and exalted dignity of Jesus. He baptized for no other reason than this: "that they should believe in Him who was to come after him" (Acts 19:4).
Since he preached this, how would he have shown the dignity of Christ's disciples if he had stopped baptizing? People would have thought he did this out of envy or vexation.
By continuing to preach, however, he proved their honor still more strongly. He did not acquire glory for himself, but sent his hearers to Christ.
He helped Him no less than His disciples did, and even more. His testimony was above suspicion, and he had greater glory among all than they did.
The Evangelist indicated this when he said, "Then Jerusalem and all Judea and all the region about the Jordan went out to him" (Mt 3:5). Even when the disciples were baptizing, the people did not cease coming to him.