The disciples were upset because the one that had taught them
everything they knew about God was leaving them. It seemed as though
Jesus did not have the power to beat death, it seemed as though he
would not be able to keep his promises.
Jesus knew what they were thinking, and he promised them that he would
indeed return, he would be raised from the dead. And what is more,
they would all be raised from the dead on the last day just as he had
been raised. They would even experience some of the benefits of his
resurrection during their own lives. Jesus’ resurrection changed the
path of history, such that his followers would change the world.
Jesus’ resurrection provided the foundation for their knowledge of God
as well. It would solidify all of the claims that he made about
himself throughout his lifetime, and it would ensure that he would
continue to reveal himself to his people.
Even though he would soon be gone, his resurrection assured that he
would always be inside his people. They would become the temples of
the Most High, the place where God is found.