John Metcalfe (1934–2019) was an English preacher and author whose distinctive ministry within evangelical Christianity emphasized a return to apostolic doctrine and practice, influencing a dedicated following across Britain and beyond. Born into a naval family, he grew up estranged from his parents and pursued a career as an officer in the Merchant Navy. His life took a dramatic turn in the mid-1950s when, at age 20, he experienced a profound conversion aboard the M.V. Gambia Palm in West Africa. Facing despair and attempting suicide by hanging from a wharf, he cried out to God for salvation, receiving what he described as miraculous strength to survive, an event that birthed his faith and call to ministry. Metcalfe’s preaching career began as an evangelist with the Youth for Christ movement in the late 1950s, where his fervent preaching sparked revivals in Warwickshire and Stratford-on-Avon. Ordained in 1961 under Martyn Lloyd-Jones at Westminster Chapel—despite rejecting formal divinity training—he later distanced himself from mainstream evangelicalism, resigning from Youth for Christ over its methods, which he felt compromised the Holy Spirit’s work. Founding the John Metcalfe Publishing Trust, he authored numerous works, including The Apostolic Foundation of the Christian Church and commentaries on Revelation, advocating a radical theology that set him apart from Reformed norms. Based in Tylers Green, Buckinghamshire, he led a congregation until his death in 2019, leaving a legacy as a polarizing yet impactful preacher whose writings and sermons—marked by authority and awe—continue to resonate with a niche audience seeking unadulterated biblical truth. He never married or had children, dedicating his life fully to his ministry.