Johann Gerhard was a Lutheran church leader and Scholastic theologian during the period of Orthodoxy.
At the age of fourteen, during a dangerous illness, he came under the personal influence of Johann Arndt, author of Das wahre Christenthum, and resolved to study for the church. He entered the University of Wittenberg in 1599, and studied philosophy and theology. A relative then persuaded him to change his subject, and he studied medicine for two years. In 1603, he resumed his theological reading at Jena, and in the following year received a new impulse from J.W. Winckelmann and Balthasar Mentzer at Marburg. He graduated in 1605 and began to give lectures at Jena, then in 1606 he accepted the invitation of John Casimir, Duke of Coburg, to th
