Who coming after me. Here he says two things; first, that Christ was behind him in the order of time; but, secondly, that he was far before him in rank and dignity, because the rather preferred him to all. Soon after he will add a third statement, that Christ was preferred to all others, because he is in reality more exalted than all others.

Whose shoe's latchet - See the notes at Matthew 3:11. The "latchet" of sandals was the string or thong by which they were fastened to the feet. To unloose them was the office of a servant, and John means, therefore, that he was unworthy to perform the lowest office for the Messiah. This was remarkable humility. John was well known; he was highly honored; thousands came to hear him. Jesus was at that time unknown; but John says that he was unworthy to perform the humblest office for Jesus. So we all should be willing to lay all that we have at the feet of Christ, and feel that we are unworthy to be his lowest servants.

Is preferred before me - Ὁς εμπροσθεν μου γεγονεν, Who was before me. This clause is wanting in BC*L, four others, the Coptic, Ethiopic, Slavonic, and two copies of the Itala, and in some of the primitive fathers. Griesbach has left it out of the text. It is likely that it was omitted by the above, because it was found in John 1:15 and John 1:30. At the end of this verse, EG, and ten others, with some copies of the Slavonic, add, He shall baptize you with the Holy Ghost and with fire.

He it is who coming after me,.... Both into the world, and into the ministry of the word; for John was before Christ, in both these respects, though greatly behind him in others, and therefore he adds,
is preferred before me: being not only of a more excellent nature, the Son of God, and of an higher extract, the Lord from heaven; but in an higher office, and having greater gifts, and the Spirit of God without measure on him; and also being more followed by the people; for John decreased, but he increased: or rather the words may be rendered, who was before me; being the eternal Son of God, whose goings forth were of old, from everlasting; who was set up from everlasting, from the beginning, or ever the earth was; the firstborn, or first bringer forth of every creature; and therefore must be before all things, which are created by him; see Gill on John 1:15.
Whose shoes latchet I am not worthy to unloose; which was one of the meanest services done by a servant to his master; see Gill on Matthew 3:11.