Slavery

Ephesians 6

5 Slaves, be obedient to those who are your earthly masters, with fear and trembling, in singleness of heart, as to Christ;

1 Timothy 6

6 Let all who are under the yoke of slavery regard their masters as worthy of all honor, so that the name of God and the teaching may not be defamed. 2 Those who have believing masters must not be disrespectful on the ground that they are brethren; rather they must serve all the better since those who benefit by their service are believers and beloved.