Martin Luther was a German priest who became the leading figure in the Protestant Reformation in the 16th century. Luther believed that scripture is the final authority on all matters of faith. Luther also wrote some classic Christian books including The Bondage of the Will, Commentary on Galatians, and The Large Catechism.Disputation on the Divinity and Humanity of Christ is a short book which Luther wrote in response to Caspar Schwenckfeld's controversial book Great Confession on the Glory of Christ.