Luther and Calvin :Part 2

Luther and/or Calvin talk about the soul and how God is the only one who can rule the soul.Humans do not have authority over the soul because they can't kill or bring to life the soul.They also talk about how secular obedience and power only extend to taxes and outward things.I agree that there is a limit of power and secular authority cannot rule faith and God's Word. If a secular authority contradicts with God's law, the Christian should obey God's law and suffer for God rather than deny Him.