Acts 7:24

24Andκαὶhaving seenἰδώνa certain oneτιναbeing wrongedἀδικούμενονhe defended [him]ἠμύνατοandκαὶdidἐποίησενvengeanceἐκδίκησινfor the [one]τῷbeing oppressedκαταπονουμένῳhaving struck downπατάξαςtheτὸνEgyptianΑἰγύπτιον.

And having seen a certain one being wronged, he defended and did vengeance for the one being oppressed, having struck down the Egyptian.