KJV - For he is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is the minister of God, a revenger to execute wrath upon him that doeth evil.
ASV - for he is a minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is a minister of God, an avenger for wrath to him that doeth evil.
BBE - For he is the servant of God to you for good. But if you do evil, have fear; for the sword is not in his hand for nothing: he is God's servant, making God's punishment come on the evil-doer.
WEB - for he is a servant of God to you for good. But if you do that which is evil, be afraid, for he doesn't bear the sword in vain; for he is a minister of God, an avenger for wrath to him who does evil.
YLT - for of God it is a ministrant to thee for good; and if that which is evil thou mayest do, be fearing, for not in vain doth it bear the sword; for of God it is a ministrant, an avenger for wrath to him who is doing that which is evil.