His writings and works developed the foundation for the first "Protestant" branch of Christianity.
What type do you think he might have been?
You can't spell "justice" without ISTJ.
ENxJ, I'm leaning towards ENFJ. He was known for his courage, tenacity, and combativeness. But then he was also known for being very zealous about his ideals and wrote poetry,
~Life in a cappella~
Martin Luther was Fi as fuck. Nothing was more important to him than his person values. He thrived in conflict and embodies what it means to make something new if you don't like what's in front of you.
"Where wisdom reigns, there is no conflict between thinking and feeling."
— C.G. Jung