Oecumenius, on Acts 2:37

“Now when they had heard these things, they had compunction in their heart, and said to Peter, and to the rest of the apostles: What shall we do, men and brethren?”

“Peter's speech, moderated with gentleness, led them to regret. The phrase "they were pierced" (κατενύγησαν), instead of "they were struck" (ἐπλήγησαν), indicates that they suffered inwardly and judged themselves. Therefore they seek a remedy for the evil, and affectionately call them brothers, those whom they formerly mocked. The address "brothers" was not said out of equality, as if presenting themselves to them by such a form of address, but showing how they had grown fond of them. And since Peter, beginning his discourse, called them so, they also thereby had an occasion to call them in the same way.”

Imported from an open dataset — not yet checked against the printed edition.