Consider then, O man! whether there can be anything more wretched and poor, more naked and miserable, than man when he dies, if he be not clothed with Christ's righteousness, and enriched in his God.

His principal work Wahres Christentum (book 1: 1605; books 1-4: 1606-1610) i. At Wittenberg the crypto-Calvinist controversy was then at its height and he took the side of Melanchthon and the crypto-Calvinists. After Wahres Christentum Arndt's best-known work is Paradiesgärtlein aller christlichen Tugenden which was publiJohann Arndtd in 1612.

Johann Arndt (or Arnd; 27 December 1555 – 11 May 1621) was a German Lutheran theologian who wrote several influential books of devotional Christianity.