Romans 13:4; Romans 15:8; Romans 16:1; Romans 16:27

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.
8 Now I say that Jesus Christ was a minister of the circumcision for the truth of God, to confirm the promises made unto the fathers:
1 I commend unto you Phebe our sister, which is a servant of the church which is at Cenchrea:
27 To God only wise, be glory through Jesus Christ for ever. Amen . [Written to the Romans from Corinthus, and sent by Phebe servant of the church at Cenchrea.]