The truth of the matter is rather as Christ says, "He who is not with me is against me." ... He does not say "He who is not with me is not against me either, but merely neutral.
Martin LutherThis doctrine (justification) is the head and the cornerstone. It alone begets, nourishes, builds, preserves, and defends the church of God and without it the church of God cannot exist for one hour.
Martin Luther