Because God is a God of love, He became personally involved in the same pain, loneliness, rejection, persecution, grief, violence, misunderstanding that we sometimes experience. He didn’t need to do that. He could have paid the price of our sins without living the life that we live. Because He loves us, He chose to identify with and experience the tragedies that this life has to offer.
We have a terrible time accepting that there might be something, a Power, a Being, a Mind that is more powerful that we. Even though we might think that having sex with our neighbour's partner is alright, we find it intolerable that a Power greater than ourselves has determined that it is not alright. And what’s more, there are going to be consequences for disagreeing with that Power. It’s easier for us to believe that Power doesn’t exist than to think that it wouldn’t approve of our decisions.