You've got to wonder if what Jesus told the leper was all in jest because the leper couldn't keep his mouth shut. He couldn't help but go and tell everyone what Jesus had done for him. It's as if Jesus infected the leper with something way more contagious than leprosy. Jesus had infected him with hope that leads to love.
Jesus really had chosen to get way but the crowds had followed him and now it was beginning to get late. The disciples knew there wouldn’t be any food to take care of the people.