Well, Master said I got my interpretations of the doctrine all wrong.

Jesus died on the cross to appease God, because humans were sinful - is that true?
No, Jesus died so we could be freed from our sins.
Our sins were so great that only a blood sacrifice would work, not a spanking or a "naughty people, stop that" lecture.
Even if you are sinful, you can repent and still go to heaven. That is because of Jesus. Without him, you could have repented all day long and still go to hell.
Why try not to sin then? Because Jesus asked us to.

So there you go, one more interpretation.

Just have to add that neither of us believe this stuff. And no, it doesn't have to make sense, it's religion for God's sake.