Romans 13:4

13:4 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.
-World English Bible

Other Translation

13:4 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.
-King James Version