Ephesians 6:5-8

Slaves, obey your earthly masters with respect and fear, and with sincerity of heart, just as you would obey Christ. Obey them not only to win their favor when their eye is on you, but as slaves of Christ, doing the will of God from your heart. Serve wholeheartedly, as if you were serving the Lord, not people, because you know that the Lord will reward each one for whatever good they do, whether they are slave or free. 

Slaves, obey your earthly masters with respect and fear 
1 Timothy 6:1-2  All who are under the yoke of slavery should consider their masters worthy of full respect, so that God's name and our teaching may not be slandered. Those who have believing masters should not show them disrespect just because they are fellow believers. Instead, they should serve them even better because their masters are dear to them as fellow believers and are devoted to the welfare of their slaves. These are the things you are to teach and insist on.
Titus 2:9-10  Teach slaves to be subject to their masters in everything, to try to please them, not to talk back to them, and not to steal from them, but to show that they can be fully trusted, so that in every way they will make the teaching about God our Savior attractive.
1 Peter 2:18  Slaves, in reverent fear of God submit yourselves to your masters, not only to those who are good and considerate, but also to those who are harsh.

and with sincerity of heart 
Colossians 3:22  Slaves, obey your earthly masters in everything; and do it, not only when their eye is on you and to curry their favor, but with sincerity of heart and reverence for the Lord.

just as you would obey Christ 
Ephesians 5:22  Wives, submit yourselves to your own husbands as you do to the Lord.

Obey them not only to win their favor when their eye is on you, but as slaves of Christ 
Romans 6:22  But now that you have been set free from sin and have become slaves of God, the benefit you reap leads to holiness, and the result is eternal life.

Serve wholeheartedly, as if you were serving the Lord, not people 
Colossians 3:23-24  Whatever you do, work at it with all your heart, as working for the Lord, not for human masters, since you know that you will receive an inheritance from the Lord as a reward. It is the Lord Christ you are serving.

because you know that the Lord will reward each one for whatever good they do, whether they are slave or free 
Matthew 16:27  "For the Son of Man is going to come in his Father's glory with his angels, and then he will reward each person according to what they have done."

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
Limited to 15 verses per post.