Commento popolare di Kretzmann
Matteo 3:14
And yet Matthew writes: But John forbade Him, saying, I have need to be baptized of Thee, and comest Thou to me?
This passage is not out of harmony with John 1:31-33, where John says that he did not know Jesus. The apparent contradiction is in the translation only. In the original the word used signifies "to recognize beyond the possibility of a doubt, to be sure of the identity. " John had known of the existence of the Messiah, either from his mother or by direct revelation, but he did not know Him personally.
When Jesus came, the majesty and dignity of His bearing caused John to surmise His identity, hence his hesitancy. But the actual identifying sign, which removed all doubts and made the recognition absolute, did not happen until after the baptism, as John relates in his gospel. In the meantime, John, impressed by the moral exaltation which emanated from the person of his visitor, sought, with some persistence, to dissuade and thus hinder Him from carrying out His intention.
He cannot throw off the impression that this man is greater than he, and it behooves the smaller to receive Baptism at the hands of the greater. Well might John wonder as to the reason that actuates Christ in coming and seeking Baptism. "Why does He come and seek Baptism, as there is no sin and uncleanness in Him which Baptism would remove? That will be a blessed baptism. John here is getting a sinner who in His own person has no sin, and yet is the greatest sinner, that has and bears the sin of the whole world.
For this reason He permits Himself to be baptized and confesses with this action that He is a sinner. However, not for Himself, but for us. For He here takes my place and thy place and stands in our stead who are sinners, and since all, especially the arrogant saints, do not want to be sinners, He must become a sinner for all; He assumes the form of our sinful flesh and complains, as many psalms testify, on the cross and in His passion, of the weight of the sins which He bears."