God hasn’t got a moral code chapter in the Bible." ----- The Bible *IS* His moral code.
"The closest thing is the Ten Commandments." ----- No. The entirety of the Bible is His moral code.
"But God kills a lot of people in the Bible so why is this a moral code you have aligned yourself with?" ----- God has never said it is acceptable for us to murder. In fact, He explicitly said that we shall not murder.
"What about the slavery in the Bible, the torture, the misogyny?" ----- God doesn't condone any of these acts. The accou t's of the Bible simply showed that people committed those acts.
"Why on earth do you think that is better than someone who learns from living their life that killing and raping are wrong?" ----- Learn from who? Who has told you that killing and raping are wrong? Why do YOU believe these acts are wrong?
"And no, God says nothing about why homosexual relationships are wrong." ----- Sorry, but He does reveal in His word why homosexual behavior/relations are immoral - it is counter to His design and intent for us. And, He doesnt really have to say why it is wrong, only that it is wrong.
"You can argue that God says not to engage in them, but never says why." ----- Again, the reason why is revealed in His word (scripture).
"Again, that is blind obedience on your part and very unhealthy." ----- How does having a reason change the fact that it is wrong? He has provided reasons, not that He has to. They simply arent good enough for you, so you reject them. It seems as though It wouldn't really matter what reasons He gives, you'll simply reject them.
So, I'll ask you what I've asked Miranda - what is your moral authority? What says certain things, like murder, rape, slavery, theft, etc... are wrong? Upon what basis can you claim that such acts are morally wrong?