Masters, treat your slaves justly and fairly, knowing that you also have a Master in heaven. Col 4.1
Slaves as used in the bible refers to workers, and those who hire workers are to make sure they are paid and treated well. It is never right for a worker to be mistreated. Having workers should make the boss become a better manager and working for such a one, should make workers more responsible. No employer should pay cheap wages; causing employees to labor for wages which cannot pay for the next meal. If you cannot take care of your employees as the word of God directs, it is best not to have any.