“He does not care whether you fast or eat, if only you do it for your own good. “All that,” He says, “has nothing to do with Me and My worship. For to worship Me means for you to reverence Me, to accept all things from Me, to acknowledge Me, to speak of Me, to praise Me, because everything in the whole world is Mine, to confess that when you are without Me, you are sinners, foolish, and weak. It means to acknowledge that I am not a tyrant, that I humble you not as if I wished you lost, but so that I may call you back from pride and teach you to be humble. Since I did this through a cross, I wish that you would be lifte up so that you would raise your heads and eyes to My Christ. For if you lack wisdom, righteousness, or strength, you have there the fountain of all wisdom and righteousness. Thus you will serve Me with fear and rejoice with trembling.”
Martin Luther changed the course of Western civilization by initiating the Protestant Reformation. As a priest and theology professor, he confronted indulgence salesmen with his 95 Theses in 1517. Luther strongly disputed their claim that freedom from God's punishment of sin could be purchased with money. His refusal to retract all of his writings at the demand of Pope Leo X in 1520 and the Holy Roman Emperor Charles V at the Diet of Worms meeting in 1521 resulted in his excommunication by the pope and condemnation as an outlaw by the emperor.
Luther taught that salvation is a free gift of God and received only by grace through faith in Jesus as redeemer from sin, not from good works. His theology challenged the authority of the pope of the Roman Catholic Church by teaching that the Bible is the only source of divinely revealed knowledge and opposed sacerdotalism by considering all baptized Christians to be a holy priesthood.
His translation of the Bible into the language of the people (instead of Latin) made it more accessible, causing a tremendous impact on the church and on German culture. It fostered the development of a standard version of the German language, added several principles to the art of translation, and influenced the translation into English of the King James Bible. His hymns inspired the development of singing in churches. His marriage to Katharina von Bora set a model for the practice of clerical marriage, allowing Protestant priests to marry.