Christians were relieved from the strictures of Leviticus by Paul. The elephant in the room in all of these discussions is the question, "How do you know the bible is true?" That is always answered by simply saying that one believes it is true. All purported statement of fact about G-d's will are overstatements. One can only believe, one cannot know.
Not by this boy. I know the Bible is true because of many proofs, the Resurrection being the most important. The Resurrection is a real historical event, and the rest of the Bible hangs on it.