What is the plan of GOD for the salvation of mankind? And why God has to plan? How Jesus is savior for all?

So let me get this correct--the man and woman your god created intially did not know the difference between good and evil--knowing what is right and what is wrong requires knowing the difference between the two. Therefore your deity punished adam and eve and ever generation thereafter for doing something that could not have known was wrong till after the deed was done. This really makes a whole lot of sense doesn't it. If you throw a steak on the floor and tell your dog not to eat it as you go out the door and leave the steak lay--do you beat your dog unmerifully and throw it's puppies out in the snow because the dog ate the steak? you abrahamics are seriously demenented in my opinion.