The work which you hold in your hand is priceless. It is priceless not because it is intrinsically more valuable than any other great work of the seventeenth century or beyond, or because it is a free book to you the interested reader–you have paid an exact, fair price in acquiring this copy no doubt–but this text is priceless rather because not everybody gets a second chance to be heard in this lifetime. For most of us, God grants a short season in this life in which we find our usefulness for His kingdom and then, well, we expire; sadly, most of us will be unreservedly forgotten after we leave this earth. Our ideas, our works, our impact in our generation, and our voices are extinguished for the ages when we die. Forgotten, we are relegated to the annals of history, and then most of the world will never know we even existed. However, this is not always true! For some, for those that God would use to be a voice of change and hope for many generations after them, their voices, though faint, are still heard. This is the case with Moses Amyraut (French spelling is Moise Amyraut), a seventeenth century (1596-1664) Frenchman whose voice carries on today with a message as relevant as the day he penned it.