Ephesians 6:9 And, ye masters, do the same things unto them, forbearing threatening: knowing that your Master also is in heaven; neither is there respect of persons with him.

Colossians 4:1 MASTERS, give unto your servants that which is just and equal; knowing that ye also have a Master in heaven.

Nehemiah 5:9 Also I said, It is not good that ye do: ought ye not to walk in the fear of our God because of the reproach of the heathen our enemies?

Exodus 1:13 And the Egyptians made the children of Israel to serve with rigour:

Exodus 1:14 And they made their lives bitter with hard bondage, in morter, and in brick, and in all manner of service in the field: all their service, wherein they made them serve, was with rigour.