Mark 5:42

And immediately, the girl got up and began to walk about (she was twelve years of age). At this, they were overcome with amazement.

This is the healing of the daughter of Jairus.

In a society where women were defined almost totally as wives and mothers (Mary was not much older when she gave birth to Jesus), and the "jewishness" of a person was through the mother, the age of the girl is more than a mere parenthesis. Mark includes this as the death was occurring when she was on the cusp of adulthood. Her death would mean she would never fulfill what was [then] seen as her adult function. Jesus intervenes, and the child is able to grow up, to change from child to adult.

Jesus does the same for us. Through Jesus' intervention, we leave our own spiritual childhood behind, and become spiritual adults.