Letters aren't a part of our routine anymore, but they played a key role in the life and culture of the early church, and perhaps none more than Paul's letter to the Romans. It is arguably the most influential letter ever written, certainly in the history of Christianity. It is the source of myriad conversions, doctrines, and even a reformation. Augustine was converted reading its 13th chapter. Martin Luther said he felt "reborn" upon reading the letter and found his theological furniture rearranged. John Wesley felt his heart "strangely warmed" and started a global church movement. Don't underestimate its power to change you.