Cross reference
1 Peter 2:14
14 Or unto governors, as unto them that are sent by him for the punishment of evildoers, and for the praise of them that do well.
Romans 13:3-4
3 For rulers are not a terror to good works, but to the evil. Wilt thou then not be afraid of the power? do that which is good, and thou shalt have praise of the same:
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.