In each generation, God raises up one dominant voice in the church that speaks with the greatest biblical authority and theological profundity, yet with far-reaching appeal. Through his prolific pulpit and pen, such a pivotal figure becomes the primary instrument that most influences the direction of God’s work around the world. Whether it be John Calvin in the sixteenth century, John Owen in the seventeenth, Jonathan Edwards in the eighteenth, or Charles Spurgeon in the nineteenth, every hour of human history has one such strategic leader who marries both depth and breadth of ministry, and most impacts the times in which he lives. For the twentieth and twenty-first centuries, a compelling case can be made that these two individuals are, respectively, Martyn Lloyd-Jones and John MacArthur. Six remarkable resemblances characterize their comparable, extraordinary preaching.