1 Timothy 6:1-2

All who are under the yoke as bond-servants (slaves) are to regard their own masters as worthy of honor and respect so that the name of God and the teaching [about Him] will not be spoken against. Those who have believing masters are not to be disrespectful toward them because they are brothers [in Christ], but they should serve them even better, because those who benefit from their kindly service are believers and beloved. Teach and urge these [duties and principles].