1 Timothy 6:1-2

1Those who are under the yoke as slaves must regard their own masters as deserving of full respect. This will prevent the name of God and Christian teaching from being discredited.

2But those who have believing masters must not show them less respect because they are brothers. Instead they are to serve all the more, because those who benefit from their service are believers and dearly loved. Teach them and exhort them about these things.