The concept of being a servant was extremely difficult for Jesus' followers to grasp, too. After all, how can He, whom they believed to be God, wash their feet? Was this act not restricted to the lowest of slaves? Yet, it would be the foundation of the Christian faith. Their Messiah was not coming like King David in a warrior's horse to win some political war and liberate them from the Romans. He was coming sitting on a donkey to die for them and expect them to die for others. So revolutionary was the thought that many who followed him left him. Yet, this revolutionary act would change the course of humanity.