(Though Jesus himself baptized not, but his disciples,)
All Commentaries on John 4:2 Go To John 4
Cyril of Alexandria
AD 444
Whence our history proceeds to this point, or from what commencement the order of the narrative progressing, introduces the Lord as knowing that the Pharisees had learnt what they enquired, it will not be amiss (it appears) to say. For in that the holy Evangelist saith When therefore the Lord knew, it clearly brings forth a certain declaration of a subject previously under consideration. For He knew all things, without any one telling Him, of Himself, as God, and not at their first coming into existence, but even before they be, as the prophet testified. But He awaiteth the right season for each, and yields rather to the order of things, than to His foreknowledge: for this too was worthy of God-befitting ceconomy.
There being then a question between some of John's disciples and a Jew about purifying, there was much disputing on both sides. For the one taking the part of their own master, were contending that his Baptism was far superior to the legal sprinklings and typical purifications of the others. And indeed probably they were adducing as a proof of this, that many came to him, and very gladly left the more ancient and older customs. These again on the other hand, when the argument was being borne down headlong by the opposite party, and the force of truth rushing down like waters, was overwhelming the feeble mind of its opponents, go against their own opinion, and against their own will say that the baptism bestowed through Christ is far more excellent. And now they begin to have the upper hand, using like arguments for their proof, and rising up against their conquerors with the same arguments. For they were affirming that many more are seen going to Christ, and that all men hasten to Him rather than to John. Whence I suppose the disciples of John kindled with grief go to their master and say, Rabbi, He That was with thee beyond Jordan, to Whom thou barest witness, behold, the Same baptizeth, and all men come to Him. The propositions or arguments of the Jews put forth out of strife, they put forward interrogatively. Hence therefore the Evangelist says that the Lord knew that the Pharisees had heard that Jesus made more disciples than John, then that He shunning their lawless jealousy, and keeping His Passion for its own time, retreats from the land of the Jews, and withdraws again into Galilee.