@popWeasel: «The blood represents the sacrifice for sins showing the serious nature of mankind's rebellion from God and the proof of God's love for us.» (religion.blogs.cnn.com)
And ask yourself, how could a loving God create a universe in which it was guaranteed (due to the very nature of mankind) that some people would be condemned, by God Himself, to live eternally in Hell? (religion.blogs.cnn.com)
But it is loaded with contradictory explanations for the behavioral nature of mankind, such as the explanation for original sin, which was supposed to be punishment to a person created without morales for doing something wrong (how can God expect someone not to do something wrong if he didn't create them to have a concept of morales?). (religion.blogs.cnn.com)