Luke
Acts 7:56ESV·traditional attribution

And he said, “Behold, I see the heavens opened, and the Son of Man standing at the right hand of God.”

John Calvin Reformed @genevareformer

56. Behold, I see the heavens. God meant not only privately to provide for his servant, but also to wring and torment his enemies; as Stephen doth courageously triumph over them, when he affirmeth plainly that he saw a miracle. And here may a question be moved, how the heavens were opened?

Matthew Henry Presbyterian @wholebiblehenry

We have here the death of the first martyr of the Christian church, and there is in this story a lively instance of the outrage and fury of the persecutors (such as we may expect to meet with if we are called out to suffer for Christ), and of the courage and comfort of the persecuted, that are thus called out.

Commenting on Acts 7:54-60

John Gill Reformed Baptist @doctorgill

And cast him out of the city,.... Of Jerusalem; for the place of stoning was without the city. The process, when regular, according to the sentence of the court, was after this manner (p); "judgment being finished, (or the trial over,) they brought him out (the person condemned) to stone him; the place of stoning was without the sanhedrim, as it is said, Lev 24:14...