The Slave Trader Who Wrote Amazing Grace

On 10th March 1748, a 22‑year‑old English sailor named John Newton was steering a slave ship called the Greyhound through a violent storm in the North Atlantic. The ship was breaking apart. Water was pouring in. Newton, who had spent years blaspheming, drinking, and brutalising the enslaved people in his care, dropped to his knees and prayed to a God he had spent his adult life mocking.

The ship survived. Newton interpreted this as divine intervention. He later called it “the hour I first believed.”

He continued trading slaves for another six years.

The Horror

Newton’s conversion was not the instant transformation the hymn suggests. After the storm, he went back to the slave trade — not as a reluctant subordinate, but as a captain. He commanded slave ships on multiple voyages between West Africa and the Caribbean.

He kept meticulous journals. In them, the enslaved people he transported appear as cargo: counted, priced, and noted in columns, their deaths recorded with the same detachment a merchant might use for spoiled grain or damaged goods.

He later wrote that during these years he “tried to be a better master” — insisting that his crew treat the enslaved with what he considered a degree of gentleness. He did not see the contradiction. He was praying to God below deck while human beings were chained above it.

Only in 1754 — six years after his “conversion” — did Newton leave the slave trade, and even then not because of a moral awakening. He suffered a serious stroke that ended his seafaring career. The sea left him. He did not decide to leave the sea. Even after retiring from active sailing, he continued to invest in the slave trade for years.

He was ordained as an Anglican clergyman in 1764 and given the parish of Olney in Buckinghamshire. And sometime around Christmas 1772 — twenty‑four years after the storm, eighteen years after his last slave voyage — he wrote the words:

“Amazing grace, how sweet the sound, that saved a wretch like me.”

The word “wretch” is not poetic humility. It is not just a convention of hymn‑writing. Newton meant it literally. He was describing a man who had chained human beings in the dark, transported them across an ocean, and sold them as property — and who believed that God had chosen to save him anyway.

The hymn never mentions slavery. It does not name the sin. It speaks only of blindness and sight, of being lost and found. The most specific guilty conscience in English hymnody is also one of the most abstract: the crime is everywhere and nowhere in the text.

It took Newton another 16 years after writing the hymn to speak publicly against the slave trade. In 1788 — forty years after his conversion — he published Thoughts upon the African Slave Trade, a pamphlet sent to every Member of Parliament. In it he wrote: “It will always be a subject of humiliating reflection to me, that I was once an active instrument in a business at which my heart now shudders.”

He became a mentor to William Wilberforce. He gave evidence to parliamentary committees. He turned his firsthand knowledge of the trade into ammunition for the abolitionist cause. The slave trader became one of the men who helped end the trade.

He died on 21st December 1807 — nine months after Parliament passed the Act abolishing the slave trade in the British Empire.

The Modern Relic

Newton wrote his own epitaph. It is carved on his tomb at the Church of Saints Peter and Paul in Olney:

“JOHN NEWTON. Clerk. 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.”

The word he chose was “servant.” Not “master,” not “trader,” not “captain.” Servant. He presents himself as someone who served the system of slavery the way a clerk serves a business: doing the paperwork, running the logistics, delivering the product. The product was human beings.

“Amazing Grace” has been recorded thousands of times. It has been sung at funerals, inaugurations, civil rights marches, and memorials. It became an anthem of the movement to free the very people Newton had once helped to enslave.

The hymn that comforts millions was written by a man who transported thousands. The church in Olney still stands. The epitaph is still legible in stone. The hymn is still sung every Sunday in churches that might not exist without the wealth the trade created.

The music calls him a wretch. The stone calls him a servant of slaves. Both are true. Neither undoes what he did.

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