In this book the Author opens up the Ten Commandments of God in their full meaning, embracing the entire life of man - as a help in the happening of our earth-life, and moreover for our entire existence beyond physical death, as a reliable guide-line for our whole life. The Interpretation of the Lord's Prayer helps seeking humanity to grasp aright this "key to the Kingdom of God" in it's profound significance for mankind and in it the Message of Jesus.

When asked by his barber and good friend, Peter Beskendorf, for some practical guidance on how to prepare oneself for prayer, Luther responded by writing this brief treatise, first published in the spring of 1535. After 500 years, his instruction continues to offer words of spiritual nurture for us today.