In one of the episodes...
In one of the episodes of the television show M*A*S*H, Lt. Col. Henry Blake
had to appoint a head surgeon to be in charge of the operating room. Knowing that he is
the next highest-ranking officer, Major Frank Burns thought that he was an cinch to get
the job. Instead, Henry Blake appointed wise guy, Hawkeye Pierce, who was also
probably the most capable surgeon in the camp. Frank Burns was furious! From Henry
Blake's point of view, sometimes skill has a higher priority than rank.
In 2 Samuel 7, David of the House of Jesse is not of the lineage of the previous King