@Greatest I am,
God never died. He has never died. He never will die. Jesus did die though, and I am going to assume, that you got a little confused with your facts. Jesus isn't a God. That's why he could be injured, why he feared and ultimately why he could die.
You use the analogy of a slave-master dying for his slave. A fair enough one too. But what you are forgetting is the purpose of why Jesus died for us. If we were perfect Jesus wouldn't have to die for us. Assuming you don't already know, Jesus died in order to take away the sins of every man and woman living on the world before and after that moment. A slave-master would never die for his slave without a reason. If there was a good enough reason, I have non doubt that one would do it. Jesus died to save us all from death.
So your question cannot be answered properly because it is starting of on the wrong foot.