No, I do not understand. You have yet to show the logic of how your bloodline gives you more or less power in a priesthood. Do Mormons have a bloodline test for the priesthood? If not, then why have different standards?<quoted text>
Jesus would need the priesthood to be able to perform certain ordinances. Since this was handed down from father to sons, bloodline linked from a prophet to Jesus is important. It was not important for this purpose that David was a king. This was just motivation to the Jews that maybe the messiah would put things back like it was when David was in charge. This was their motivation for expecting a king that would free them from Roman rule. It was also important that John the Baptist had a lineage linked to the priesthood as well. He had the authority to baptize because he held the Levitical priesthood that had been passed down.
Is this blood magic or something?