Martyn Lloyd-Jones impacted countless Christians in his own day with his passionate preaching and a resolute commitment to the Bible as God's Word. But the principles upon which he built his life and teaching remain as relevant today as they were during his lifetime. Written by his eldest grandson, this biography reveals the heart of Lloyd-Jones's ministry and explores how the physician-turned-preacher integrated belief with practice, in the hope that his legacy will inspire a new generation of believers to boldly cherish and declare the great things of God.