Well like most people, Christians included, everything youve taken out of the Bible is out of context. I would Google the definition of "parable" and then read the Bible full context. I stopped reading after b) when I read your quoted scripture and recognized your failing pattern. But so you dont go without, Ill explain

A) God says you as a Christian cant own another Christian as a slave. During the era that the Old Testament was written, hence the socially accepted owning of slaves, God says you can buy and own slaves but no slave can be Christian. Whether before or after purchase. I dont think I need to explain to you that slavery isnt the social normal now a days..... Dont worry, I can see how you would be confused by this. Leviticus 25:39-43

B) This is where knowing the definition of a parable comes in play and also reading full context so you truly understand whats being said here. Moral of the story is stay faithful to Jesus because you never know when the day comes for when you will see Him again so always be prepared and ready and humble. Luke 12:41-48

I stopped reading after that because you're just trying to show off on the internet like you have me beat or shook or like you know what you're talking about. Either way, I don't care what you say or think. Maybe you got burned by a church or Christian friends or you did research to show other Christians how stupid you think their religion is. If youre going to do that..... at least be accurate. Pulling single verses and twisting them to fit your joke of an argument wont get you far when you come across people who know what theyre talking about.

Good luck in your future asshattery.... seems like you need some