Ephesians 6:9

And as for you masters, act by your servants in the same way, and stop threatening them; be sure that they and you have a Lord and Master in heaven, and there is no partiality about him.

Colossians 4:1

Masters, treat your servants justly and fairly; remember you have a Master of your own in heaven.

Treasury of Scripture Knowledge

Summary

If I did despise the cause of my manservant or of my maidservant, when they contended with me;

Bible References

The cause

Ephesians 6:9
And as for you masters, act by your servants in the same way, and stop threatening them; be sure that they and you have a Lord and Master in heaven, and there is no partiality about him.
Colossians 4:1
Masters, treat your servants justly and fairly; remember you have a Master of your own in heaven.