Why?

[I]t is also apparent that Bonhoeffer’s rationale for his longstanding involvement in the resistance was because of—and not in spite of—his theology. Bonhoeffer believed that responding to God’s command necessitates being wholeheartedly in the world and taking up real problems.—Bonhoeffer the Assassin?, pages 209-210

<idle musing>
Would that more people would allow their theology out of the mind and into their life! Sure, it makes for a messier theology—not everything fits nicely into life! But it makes for more authentic living and leaves room for the Holy Spirit to work...
</idle musing>