Servant, Servant.
The "Servant" of God is a symbol of Jesus Christ, who, having perfectly known and fulfilled the Will of God, so acquired the spiritual "Image" and "Likeness" of God.        Christ, by His holy, sacrificial way of life, which He gave on the altar of service to God, by the gospel of the Doctrine of the spiritually purifying power of the Divine Will, expressed in His Commandments, thus became a "Servant" of God to all men.    

  "Servant" is also a symbol, a characteristic of a man who, knowing and doing the Will of God, His Commandments, by his righteous deeds so serves God.
Negative Meaning.
"Servant" of evil is a person who, rejecting, perverting, violating the Will of God, His Commandments, supports and commits evil - deeds that destroy his spirit, soul and body, destroys the Good, righteous life in other people.