Home
/
RELIGION & LIBERTY ONLINE
/
John Newton: From Slave Trader to Abolitionist Pastor
John Newton: From Slave Trader to Abolitionist Pastor
Apr 11, 2026 7:51 PM

The story of John Newton’s conversion is legendary. His hymns, like “Amazing Grace,” perennial favorites. His pastor’s heart, exemplary. His fight for an abolition of the slave trade, monumental. But none of this came quickly or easily.

Read More…

John Newton (1725–1807) is a pivotal figure in the English evangelical revival or awakening. His is an early example of a settled evangelical ministry in the second half of the 18th century, involving pastoral work, hymn-writing, and even mentoring the likes of a William Wilberforce. Yet Newton began as an unconverted, rugged sailor, known for mocking authority and trading in slaves. His conversion to Christ, however, initiated a slow but steady transformation. As theepitaph for his gravestone reads, which he posed:

John Newton … once an infidel and libertine, a servant of slaves in Africa was by the rich mercy of our Lord and Saviour Jesus Christ preserved, restored, pardoned and appointed to preach the faith he had long laboured to destroy.

John Newton was born on July 24, 1725, to John and Elizabeth. His mother was devout, his father regularly absent at sea. His mother died before his seventh birthday; his father remarried quickly. Newton himself was destined for a career at sea, and there were numerous ships and voyages, a press gang, and even a desertion. At age 21, he entered the employment of Amos Clow and thus began his direct involvement with the slave trade, through which he prospered. Newton’s father, who remained concerned for his son’s welfare, sent a ship to the African coast to seek him out. Newton, attracted by a made-up story of a legacy and the not-made-up story of his love for Polly Catlett (his eventual wife), joined the Greyhound and headed back across the Atlantic.

On board, extraordinarily but by divine providence, Newton picked up a copy of Thomas á Kempis’s Christian classic, The Imitation of Christ. He had never encountered anything like it, and he began to wonder if the Christian claims might be true. On March 10, 1748, Newton was awakened in his cabin by a storm, the ship’s rotten timbers broken by the waves and floodwater swirling into his cabin. One man was swept overboard, and the ship was badly damaged. As he recorded in his Authentic Narrative, published in 1765, this was when he began to pray and read the scriptures. Newton viewed his spiritual encounter on the Greyhound as his conversion experience, “a day much to be remembered by me,” “on that day the Lord sent from on high and delivered me out of the deep waters.” Yet he knew that he understood little and experienced many setbacks and backslidings. It was over the next seven years that his Christian life and convictions would be shaped.

It is perhaps hard for us to understand why Newton continued to captain slave-trading ships after his “conversion”—first the Brownlow (as mand), then the Duke of Argyle, and two voyages on the African. Indeed, in his Authentic Narrative, there are no reflections on the evils of the slave trade; that conviction e later. He married Polly in 1750 and corresponded with her on his last trip on the African, telling her that he was praying for her and reading the scriptures. On this trip, he also met a Christian trader (not in slaves), Alexander Clunie, who mentored Newton in the faith. He then became acquainted with George Whitefield, first in London and then Liverpool, describing himself as a Methodist for the first time. (“Methodist” was used at this time to describe all evangelicals, rather than to describe a separate denomination.) As Methodists taught, sanctification—a growth in holiness and Christian maturity—is a process,and for the hardened sailor and slave trader Newton, it took some time.

Newton felt increasingly drawn to ordained ministry but was less sure about which denomination. He had some objections to the Church of England, but these softened under the influence of other ministers. The path, however, was not straightforward.

To gain ordination you needed a post, testimonials to character, and a willing bishop. The last of these was the most problematic for Newton. Initially he was refused ordination by the Bishop of Chester and then by the Archbishop of York.

What was the problem? Although Newton felt well disposed toward the Church of England, he also made it clear that he was not attached to any particular denomination and expressed doubts about both infant baptism and the apparent assumption of salvation in the burial service. He was also concerned about a regnant opposition to evangelicals within the Church.

He received several offers to accept appointment in independent churches and was close to accepting one from a Presbyterian church, when an evangelical aristocrat, the Earl of Dartmouth, intervened. He had read Newton’s autobiographical Authentic Narrative and was impressed. He controlled the appointment to a post in Olney in Buckinghamshire and offered it to Newton. Newton was again rebuffed by the Bishop of Lincoln and the Archbishop of York, but then Dartmouth pleaded directly with the Bishop of Lincoln, who agreed to interview Newton—who proceeded to express his doubts about the liturgy. Finally, on April 29, 1764, Newton was ordained, after a seven-year saga. He declared that his “only hope is in the name of Jesus.” The this-world hero of the story, however, is Lord Dartmouth, preventing the bishops from washing their hands of Newton altogether.

Newton was in post in Olney from 1764 to 1779. Evangelicals had a gift for revitalizing moribund parish ministries. Newton was known by his parishioners; he walked the streets, not in clerical clothing, but in his sailor’s jacket. He visitedthem. He supported and cared for the poor and needy, wrote letters, ensured the supply of Bibles where needed, and studied the scriptures himself. He preached twice on a Sunday, three other times in the week, and gave a lecture on Sunday evenings. He was not naturally a great preacher and was sometimes both unprepared and unguarded in what he said.

Central to Newton’s Olney ministry was his relationship with William Cowper (1731–1800). Cowper (pronounced “Cooper”) was one of the greatest English poets of the 18th century but who faced a long-term struggle with mental illness. His deep and lasting friendship with Newton produced the Olney Hymns. Cowper’s mental anguish was very deep and included time in an asylum. He came under the care of an evangelical household, the Unwins, and after her husband died, Mary Unwin and her two children, with Cowper as the lodger, moved into a property adjacent to Newton’s rectory in Olney. Newton reached out to his depressed visitor with passion and practical encouragement, and would sometimes be called to the Unwin home at 3 in the morning to calm Cowper. During one bout of serious mental despair that befell Cowper in 1773, Newton noted in his diaries that “My dear friend still walks in darkness. I can hardly conceive that anyone in a state of grace and favour with God can be in greater distress.”

Newton worked with Cowper to write hymns, culminating in the publication of the Olney Hymns (1779). This entailed a three-fold division, with 141 hymns on selected texts of scripture, 107 on progress and changes in the spiritual life, and 100 on various other subjects. Newton’s writing was characterised by simplicity, rhythm, and an ease of singing. Cowper was always the poet. Examples still sung today include Newton’s “How Sweet the Name of Jesus Sounds” and Cowper’s “Jesus Wherever Your People Meet” with its reminder that Christ is not confined by walls (the very release that Jesus offered to Cowper). And, of course, there is “Amazing Grace”—written for a service for New Year’s Day, January 1, 1773.

Olney, though, was not easy ministry, with numbers in church and at prayer meetings beginning to fall. After 15 years, fresh pastures beckoned. Newton’s ministry had e more widely known and appreciated, and an opportunity opened up for Newton to obtain a post in the City of London, the business and banking district, where an evangelical presence was weak. In 1779, he was appointed to the rectory of St. Mary, Woolnoth, a church that nestled in the shadow of the Bank of England. In his first sermon, he described the Bible as “the grand repository of the truths that it will be the business and the pleasure of my life to set before you.” Newton’s ministry attracted a growing number of hearers, and soon a gallery had to be built at the church to modate them.

When William Wilberforce was a boy, his aunt and uncle brought him to meet Newton at Olney. In late 1785, whenWilberforce was 26, he wrote to Newton requesting a secret meeting. Wilberforce himself was a converted and changed man but struggling with whether to remain in public life as a member of Parliament or to enter the ministry. Wilberforce was so anxious about being spotted, he twice walked round the square where Newton lived before knocking at the door. In early 1786, Newton wrote to Cowper about Wilberforce, saying that “I hope the Lord will make him a blessing, both as a Christian and a statesman.”

It was a turning point. Wilberforce became a regular Saturday visitor and Sunday congregant. Newton became a public campaigner for the abolitionist movement when, in 1787, he collaborated with Wilberforce and others in the formation of the Anti-Slavery Society and in January 1788 he published his highly influential pamphlet Thoughts Upon the African Slave Trade, describing the horrors he had seen. In this Newton acknowledged his personal involvement and responsibility, and he repented. His personal experience put him in a strong position to campaign, which he did with Wilberforce for the next 19 years. Although he was perhaps late to the scene, both evangelical and wider public opinion was changing. Abolition of the slave trade succeeded in the year Newton died.

Unlike Wilberforce, Newton was not a politician or a statesman. But he was a pastor. Unlike Whitefield, he was not a great orator. But he spoke powerfully. Perhaps most important, Newton had a backstory, one that formed and shaped him in the campaign against the slave trade. He also exemplified the somewhat uneasy relationship betweenevangelicals and the Church of England—the former mitted to the established church but were as much at ease in an independent chapel. The preaching of the liberating gospel of Jesus Christ was what mattered most. This Newton knew, and in time proved a great model, mightily used by God.

Comments
Welcome to mreligion comments! Please keep conversations courteous and on-topic. To fosterproductive and respectful conversations, you may see comments from our Community Managers.
Sign up to post
Sort by
Show More Comments
RELIGION & LIBERTY ONLINE
Rev. Sirico on Faith-Based Budgeting
Over at World Magazine, Lee Wishing cites a speech by Rev. Robert A. Sirico, president and co-founder of the Acton Institute, on the subject of putting our faith in God and our own abilities instead of the government to manage economies.He quotes Rev. Sirico: “Many thinkers throughout the ages have noted that we face a choice between holding a robust faith in God or putting faith in man and institutions such as the state.” In such tough economic times, we...
The Ultimate Green Job
Speaking of “green” jobs, here’s the ultimate green job: Maybe we’d all be better off if our federal lawmakers took their own jobs this seriously. ...
Preview: Pope Benedict XVI on the Market Economy and Ethics
Pope Benedict XVI’s much anticipated economics encyclical, Caritas in Veritate, is scheduled to be released early next week, according reports. For a good sense of this pope’s thinking on economics, we offer an article the then-Joseph Cardinal Ratzinger presented in 1985 at a symposium in Rome. The Acton Institute published it under the title “Market Economy and Ethics.” As indicated by the following quote, the pope believed in integrating morals into economics in order to have sound and successful economic...
Time to go, Gov. Sanford
A reader makes a request: My purpose for writing is simply to request the Acton Institute make a public statement on its website to repudiate Mr. Sanford’s actions, in large measure because he was prominently featured in Volume 18, Number 3 of Religion & Liberty journal. Of course your organization is not expected to guarantee moral behavior of its featured contributors simply because none of us knows what is really in the hearts and minds of our neighbor. Governor Sanford...
Report: Pope’s New Economics Encyclical Leaked
According to the Catholic News Agency, an Italian newspaper claims to have acquired some parts of the ing Caritas in Veritate encyclical of Pope Benedict XVI. Some of the quotes published by Corriere della Sera are claimed to be from the encyclical and align with the predictions that the Pope will be advocating for morality to be the basis of solving our economic crisis. Here is a quote: Without truth, without trust and love for what is truthful, there is...
Sin, Responsibility, and the Fall of Bernie Madoff
Only if there are new human beings will there be a new world, a renewed and better world. When the Pope said these words at Vespers on Sunday, perhaps he had Bernie Madoff in mind. Today, Madoff was sentenced to 150 years in prison for defrauding his investors of nearly $65 billion over the course of 20 years. His corruption and crimes ruined the livelihoods of thousands of businesspeople, charity workers, and families that trusted his sterling reputation to protect...
Acton Commentary: The paradox of liberty
Liberty is something we have valued for years in the United States, and the recent events that have occurred in Iran and Honduras demonstrate there are many people throughout the world who wish they were blessed to live in a country that protects and values liberty. As we get ready to celebrate the Fourth of July, Kevin Schmiesing, research fellow at the Acton Institute, writes a very mentary on liberty. Schmiesing explains the delicacy of freedom and how it can...
Praise for Acton University
Acton University has been over for almost two weeks now. A testimony to what a great experience it is can be found on a blog, A Voice in the Wilderness, by R.J. Moeller. Moeller was a student at Acton University this year and provides great insight to the experience he had. If you are curious about Acton University or even Acton Institute please read his blog post. He gives a great description about both that is very well written. ...
Allen and Novak on Caritas in Veritate
There has been much mentary, and debate on Pope Benedict’s much anticipated encyclical on the economy Caritas in Veritate (remarkable for a statement that has not yet been released). At the PowerBlog, we will keep you informed on what is being said about the encyclical and, when it is released, we look forward to providing great coverage. Two of the most mentaries came from John Allen Jr. in the National Catholic Reporter and Michael Novak in First Things. In Allen’s...
Maybe I don’t get out enough
Last week I took Friday afternoon off and did the yard work. I’d been listening to radio broadcasts about the vote in Congress on HR 2454 – what some of us call the “cap and tax” climate bill. You know, the one none of the members had read before the vote? Yes, I know, there’s more than one bill that they haven’t read prior to voting. Yard work is good for my psyche. In two hours I can make a...
Related Classification
Copyright 2023-2026 - www.mreligion.com All Rights Reserved