Luke
Acts 7:2ESV·traditional attribution

And Stephen said: “Brothers and fathers, hear me. The God of glory appeared to our father Abraham when he was in Mesopotamia, before he lived in Haran,

John Calvin Reformed @genevareformer

2. Men, brethren, and fathers. Although Stephen saw that those which sat in the council were, for the most part, the sworn enemies of Christ, yet because the ordinary government of the people did belong to them, and they had the oversight of the Church, which God had not as yet cast off, therefore, he is not afraid, for modesty’s sake, to call them fathers.

Matthew Henry Presbyterian @wholebiblehenry

Stephen is now at the bar before the great council of the nation, indicted for blasphemy: what the witnesses swore against him we had an account of in the foregoing chapter, that he spoke blasphemous words against Moses and God; for he spoke against this holy place and the law. Now here, I. The high priest calls upon him to answer for himself, Act 7:1.

Commenting on Acts 7:1-16

John Gill Reformed Baptist @doctorgill

And he said,.... Stephen replied, in answer to the high priest's question, and addressed himself to the whole sanhedrim, saying: men, brethren, and fathers, hearken; to the following oration and defence; he calls them men, brethren, by an usual Hebraism, that is, "brethren"; and that, because they were of the same nation; for it was common with the Jews to call those of their own...