And what if we don't HAVE any sins? Oh, that's right! We are BORN with sin, because a "just" God cursed all of Adam's descendants for Adam's sin! So Jesus (who IS God) had to be sacrificed TO God to save us from a sin which was inflicted upon us BY God?
It's religion, all right. Therefore it DOESN'T make sense! By definition.no, it doesn't have to make sense, it's religion for God's sake.