Working on a study of "The Divine Conspiracy" by Dallas Willard for our book group, I read up on Martin Luther's view of faith in light of Willard's critiques of "gospels of sin management."
For Luther, faith was much more than the assent to a set of doctrines, affiliation with a church, or a method of "sin management," the current maladies that Willard describes. For Luther, faith was:
1. An active response to the gospel
2. A personal relationship with God, and
3. Lived out in glorifying God and serving one's neighbors
well-fed: Luther and faith