Leadership lessons from Jesus Christ; wisdom from The Gospel of Mark.
Time: Between 1 AD and 30 AD
Six days later Jesus took Peter, James, and John to the top of the mountain. No one else was there. — Mark 9:2
More leadership has failed from lack of intimacy than from any other cause. Leaders, no matter how brilliant cut their tenures short or otherwise fail to achieve what was possible because they do not cultivate close relationships with their core following — a few key people.
Wikipedia article on the historical Jesus.