Care must be taken to draw a distinction between a rational idea and an emotional truth. A rational idea is a construct of the conscious mind. An emotional truth is an expression of human feeling. It's just what someone feels to be true.
Jesus Christ never gave religious law in the tradition of the old religion (the Law of Moses) or Islamic law. He spoke in cryptic imagery and enigmatic parables. As a consequence, Christianity has no rational expression. It is pure emotionality.
Confusion always enters in when traditional Christians take purely emotional statements like, 'Christ died for our sins' and view them in rational terms. Then they want to accept them at face value, literally, despite the fact that they make no sense as rational ideas. This is why we need to have separation of church and state.