Ephesians 6:5-8
Servants, be obedient to those who are your masters here below with reverence and trembling, with singleness of heart as to Christ himself;
Colossians 3:22-25
Servants, obey your masters here below at every point; do not work simply when their eye is on you, like those who court human favour, but serve them with a single heart out of reverence for your Lord and Master.
Titus 2:9-10
Tell servants to be submissive to their masters and to give them satisfaction all round, not to be refractory,
1 Peter 2:18
Servants, be submissive to your masters with perfect respect, not simply to those who are kind and reasonable but to the surly as well ??19 for it is a merit when from a sense of God one bears the pain of unjust suffering.