Those who have believing masters, let them not despise them, because they are brothers, but rather let them serve them, because those who partake of the benefit are believing and beloved. Teach and exhort these things.
but rather do them service because they are faithful and beloved, partakers of the benefit: Building upon the foundation that spiritual ties do not nullify other relationships, even among Christians, Paul urges the servant not to act "as if the spiritual equality had effaced the civil distinction; but the rather serve them, because they who receive the benefit are faithful and beloved" (Fairbairn 232). Paul does not suggest to give less service to the unsaved; rather, he gives more reason for one’s service to the saved. His manner here is not corrective but intensive; that is, he encourages the servant to "do the more."