Romans 13:4

4Of Godθεοῦforγὰρservantδιάκονόςhe isἐστινto youσοὶforεἰςτὸgoodἀγαθόν.Ifἐὰνhoweverδὲτὸevilκακὸνyou doποιῇς,be afraidφοβοῦ·notοὐforγὰρin vainεἰκῇtheτὴνswordμάχαιρανhe bearsφορεῖ·of Godθεοῦforγὰρa servantδιάκονόςHe isἐστιν,an avengerἔκδικοςforεἰςwrathὀργὴνto the [one]τῷτὸevilκακὸνdoingπράσσοντι.

For he is God’s servant to you for good. But if you do evil, be afraid, for he does not bear the sword in vain. For he is God’s servant, an avenger for wrath to the one practicing evil.