Of the four gospels Mark alone sets Jesus’ death and resurrection in the context of Old Testament purity rituals. From the very beginning we find Christ’s herald in the water, baptizing for the forgiveness of sins. We find Jesus, Himself, baptized and then driven to the wilderness to face the Prince of this World. Everything that follows in Mark’s gospel follows these events and is an unfolding of Christ’s invasion of the strong man’s house. It is a battle not just of God and Satan but of Holiness vs. Uncleanness.