Were of the Pharisees. He says that they were Pharisees, who at that time held the highest rank in the Church; and he says so in order to inform us, that they were not some contemptible persons of the order of the Levites, but men clothed with authority. This is the reason why they raise a question about his baptism. Ordinary ministers would have been satisfied with any kind of answer; but those men, because they cannot draw from John what they desired, accuse him of rashness for venturing to introduce a new religious observance.

Were of the Pharisees - For an account of this sect, see the notes at Matthew 3:7. Why they are particularly mentioned is not certainly known. Many of the "Sadducees" came to his baptism Matthew 3:7, but it seems that they did not join in sending to him to know what was the design of John. This circumstance is one of those incidental and delicate allusions which would occur to no impostor in forging a book, and which show that the writers of the New Testament were honest men and knew what they affirmed. Because:
1. The Pharisees composed a great part of the Sanhedrin, Acts 23:6. It is probable that a deputation from the Sanhedrin would be of that party.
2. The Pharisees were very tenacious of rites and customs, of traditions and ceremonies. They observed many. They believed that they were lawful, Mark 7:3-4. Of course, they believed that those rites might be increased, but they did not suppose that it could be done except by the authority of a prophet or of the Messiah. When, therefore, John came "baptizing" - adding a rite to be observed by his followers - baptizing not only Gentiles, but also Jews - the question was whether he had authority to institute a new rite; whether it was to be received among the ceremonies of religion. In this question the Sadducees felt no interest, for they rejected all such rites at once; but the Pharisees thought it was worth inquiry, and it was a question on which they felt themselves specially called on to act as the guardians of the ceremonies of religion.

(12) And they which were sent were of the Pharisees.
(12) Christ is the author of baptism, and not John: and therefore the authority of this does not come from John, who is the minister, but wholly from Christ the Lord.

And they which were sent were of the Pharisees. Who were the straitest sect of religion among the Jews; were very zealous of the traditions of the elders, and professed an expectation of the Messiah; and were famous in the nation for their knowledge and learning, as well as for their devotion and sanctity: and many of them were in the sanhedrim, as appears from John 3:1; see Gill on Matthew 3:7.

Were of the Pharisees. See notes on Matthew 3:7.

They who were sent were of the Pharisees - Who were peculiarly tenacious of old customs, and jealous of any innovation (except those brought in by their own scribes) unless the innovator had unquestionable proofs of Divine authority.