Matthew
Matthew 11:14ESV·traditional attribution

and if you are willing to accept it, he is Elijah who is to come.

John Calvin Reformed @genevareformer

14. And if you are willing to receive it He now explains more clearly in what manner John began to preach the kingdom of God It was in the character of that Elijah, who was to be sent before the face of God, (Malachi 4:5.) Our Lord’s meaning therefore is, that the great and dreadful day of the Lord, which Malachi described, is now beheld...

Matthew Henry Presbyterian @wholebiblehenry

We have here the high encomium which our Lord Jesus gave of John the Baptist; not only to revive his honour, but to revive his work. Some of Christ's disciples might perhaps take occasion from the question John sent, to reflect upon him, as weak and wavering, and inconsistent with himself, to prevent which Christ gives him this character.

Commenting on Matthew 11:7-15

John Gill Reformed Baptist @doctorgill

He that hath ears to hear, let him hear. A way of speaking used by Christ, when anything serious, and of great importance, was delivered; and which required attention, and was not easily understood: and such were the several things he had mentioned in this context; as that John was more than a prophet, more excellent than all the prophets; that the law and prophets...