While hiding out at Wartburg Castle in 1521–1522, Luther brought to life a revolutionary idea: a translation of the Bible in the language of the people. In under a year, Luther was able to complete a German translation of the New Testament which was published in 1522. This was quickly followed by his translation of the Pentateuch in 1523. It wasn’t until 1534 that a German translation of both the Old and New Testaments was published by Luther, with the help of Philipp Melanchton and other associates.