Luke
Luke 3:7BSB·traditional attribution

Then John said to the crowds coming out to be baptized by him, “You brood of vipers, who warned you to flee from the coming wrath?

John Calvin Reformed @genevareformer

As to the loud and open rebuke, which was administered to them in presence of all, it was for the sake of others; and that is the reason why Luke mentions, that it was addressed to multitudes, (Luke 3:7.) Though the persons whom John reproved were few in number, his design was to strike terror on all; as Paul enjoins us to regard it as...

Matthew Henry Presbyterian @wholebiblehenry

John's baptism introducing a new dispensation, it was requisite that we should have a particular account of it. Glorious things were said of John, what a distinguished favourite of Heaven he should be, and what a great blessing to this earth (Luk 1:15, Luk 1:17); but we lost him in the deserts, and there he remains until the day of his showing unto Israel, Luk 1:80.

Commenting on Luke 3:1-14

John Gill Reformed Baptist @doctorgill

Then said he to the multitude,.... That is, John, as the Ethiopic version reads; and the multitude to whom he spake the following words, were many of the Pharisees and Sadducees, as appears from Mat 3:7 That came forth to be baptized of him; who came out of their houses, towns, and cities, round about, to the place where John was; and hearing and seeing...