There was a man. The Evangelist now begins to discourse about the manner in which the Son of God was manifested in flesh; and that none may doubt that Christ is the eternal Son of God, he relates that Christ was announced by John the Baptist, as his herald. For not only did Christ exhibit himself to be seen by men, but he chose also to be made known by the testimony and doctrine of John; or rather, God the Father sent this witness before his Christ, that they might more willingly receive the salvation offered by him. But it might at first sight appear ridiculous that Christ should receive testimony from another, as if he needed it; while, on the contrary, he declares that he does not seek testimony from man, (John 5:34.) The answer is easy and obvious, that this witness was appointed, not for the sake of Christ, but for our sake. If it be objected that the testimony of man is too weak to prove that Christ is the Son of God, it is likewise easy to reply, that the Baptist is not adduced as a private witness, but as one who, having received authority from God, sustained the character rather of an angel than of a man. Accordingly, he receives commendation not for his own virtues, but for this single circumstance, that he was the ambassador of God. Nor is this at variance with the fact, that the preaching of the gospel was committed to Christ, that he might be a witness to himself; for the design contemplated by the preaching of John was, that men might attend to the doctrine and miracles of Christ. Sent by God. He does not say so for the purpose of confirming the baptism of John, but only mentions it in passing. This circumstance is not sufficient to produce certainty, since many run of their own accord, and boast that God has sent them; but the Evangelist, intending afterwards to speak more fully about this witness, reckoned it enough, for the present, to say in a single word, that John did not come but by the command of God. We shall afterwards see how he himself affirms that God is the Author of his ministry. We must now recollect -- what I formerly noticed -- that what is asserted about John is required in all the teachers of the Church, that they be called by God; so that the authority of teaching may not be founded on any other than on God alone. Whose name was John. He states the name, not only for the purpose of pointing out the man, but because it was given to him in accordance with what he really was. There is no room to doubt that the Lord had reference to the office to which he appointed John, when he commanded by the angel that he should be so called, that by means of it all might acknowledge him to be the herald of divine grace. [1] For though the name yhvchnn [2] (Jehohannan) may be taken in a passive signification, and may thus be referred to the person, as denoting that John was acceptable to God; yet for my own part, I willingly extend it to the benefit which others ought to derive from him. [3]

Footnotes

1 - "Heraut et ambassade de la grace de Dieu;" -- "Herald and ambassador of the grace of God."

2 - "Le nom de Jean, qui signifie Grace;" -- "The name John, which signifies Grace."

3 - For the meaning of the name John, derived from the Hebrew Jehohannan, the reader may consult our Author's Commentary on the Harmony of the Three Evangelists, [2]vol. i. page 15. -- Ed.

A man sent from God - See Matt. 3. The evangelist proceeds now to show that John the Baptist was not the Messiah and to state the true nature of his office. Many had supposed that he was the Christ, but this opinion he corrects; yet he admits that he was "sent from God" - that he was divinely commissioned. Though he denied that he was "the Messiah," yet he did not deny that he was sent from or by heaven on an important errand to human beings. Some have supposed that the sole design of this gospel was to show that John the Baptist was not the Messiah. Though there is no foundation for this opinion, yet there is no doubt that one object was to show this. The main design was to show that "Jesus was the Christ," John 20:31. To do this, it was proper, in the beginning, to prove that "John" was not the Messiah; and this might have been at that time an important object. John made many disciples, Matthew 3:5. Many persons supposed that he might be the Messiah, Luke 3:15; John 1:19. "Many of these disciples of John remained" at Ephesus, "the very place where John is supposed to have written this gospel, long after the ascension of Jesus," Acts 19:1-3. It is not improbable that there might have been many others who adhered to John, and perhaps many who supposed that he was the Messiah. On these accounts it was important for the evangelist to show that John "was not the Christ," and to show, also, that he, who was extensively admitted to be a prophet, was an important "witness" to prove that Jesus of Nazareth was the Christ. The evangelist in the first four verses stated that "the Word" was divine; he now proceeds to state the proof that he was a "man," and was the Messiah. The first evidence adduced is the testimony of John the Baptist.

Whose name was John - This was John the Baptist; see his name and the nature of his office explained, Mark 1:4 (note), and Matthew 3:1-3 (note).

(4) There was a man sent from God, whose name [was] John.
(4) There is another more full manifestation of the Son of God, by the consideration of which men are in good time stirred up, even to John's voice, who is as it were the herald of Christ.

There was a man sent from God,.... John the Baptist: he was not the Logos, or word; nor was he an angel, but a man; yet an extraordinary one, in his conception of a barren woman, and in being born when both parents were stricken in years; and whilst he was in the womb, he leaped for joy at the salutation of Mary; and as soon as born was filled with the Holy Ghost; and when he was grown up, and appeared in public, it was in an uncommon manner: his dress and his diet were both out of the common way; and his temper and spirit were that of Elias the prophet; and as for his work and office, it was very peculiar; he was the forerunner of Christ, and the first administrator of the new ordinance of baptism, and the greatest of all the prophets: this person had his mission from God, both to preach and baptize:
whose name was John; the name given him by the angel before his conception, and by his mother Elisabeth, after her neighbours and cousins had given him another; and which was confirmed by his father Zacharias, when deaf and dumb: it signifies grace, or gracious; and a gracious man he was; he was very acceptable to his parents; a man that had the grace of God in him, and great gifts of grace bestowed on him; he was a preacher of the doctrines of grace; and his ministry was very grateful to many.

John the Baptist came to bear witness concerning Jesus. Nothing more fully shows the darkness of men's minds, than that when the Light had appeared, there needed a witness to call attention to it. Christ was the true Light; that great Light which deserves to be called so. By his Spirit and grace he enlightens all that are enlightened to salvation; and those that are not enlightened by him, perish in darkness. Christ was in the world when he took our nature upon him, and dwelt among us. The Son of the Highest was here in this lower world. He was in the world, but not of it. He came to save a lost world, because it was a world of his own making. Yet the world knew him not. When he comes as a Judge, the world shall know him. Many say that they are Christ's own, yet do not receive him, because they will not part with their sins, nor have him to reign over them. All the children of God are born again. This new birth is through the word of God as the means, 1-Peter 1:23, and by the Spirit of God as the Author. By his Divine presence Christ always was in the world. But now that the fulness of time was come, he was, after another manner, God manifested in the flesh. But observe the beams of his Divine glory, which darted through this veil of flesh. Men discover their weaknesses to those most familiar with them, but it was not so with Christ; those most intimate with him saw most of his glory. Although he was in the form of a servant, as to outward circumstances, yet, in respect of graces, his form was like the Son of God His Divine glory appeared in the holiness of his doctrine, and in his miracles. He was full of grace, fully acceptable to his Father, therefore qualified to plead for us; and full of truth, fully aware of the things he was to reveal.

The Evangelist here approaches his grand thesis, so paving his way for the full statement of it in John 1:14, that we may be able to bear the bright light of it, and take in its length and breadth and depth and height.

There was a man sent from God. The writer now speaks of a witness to the Light, John, a man sent from God. He was called to his work from his mother's womb.
The same came for a witness, to bear witness of the Light. John came, not so much as a reformer, as a witness. His work, as declared by Malachi, was to be a messenger to go before the Lord. In all his preaching he testified of Christ. He pointed his own disciples to Jesus.
He was not that Light, but was sent to bear witness. An early heretical sect held that John the Baptist was the Messiah. The apostle is explicit, in order to correct this error.

There was a man - The evangelist now proceeds to him who testified of the light, which he had spoken of in John 1:1-5.