The Law of the Presiding Bishop

A literal descendant of aaron may serve as a presiding bishop without counsellors, if called by the first presidency. So it goes from being a legal right, which would seem to be something that you have because of your descent and your lineage from aaron,. Now they're conditioning it upon being called by first presidency, which doesn't sound like much of a legal right. And yet, legal right is how it is described in the revelation in section one o seven.