“Amazing Grace” is a Christian hymn published in 1779, with words written by the English poet and Anglican clergyman John Newton (1725–1807).
Newton wrote the words from personal experience. He grew up without any particular religious conviction, but his life’s path was formed by a variety of twists and coincidences that were often put into motion by his recalcitrant insubordination. He was pressed (conscripted) into service in the Royal Navy, and after leaving the service, he became involved in the Atlantic slave trade. In 1748, a violent storm battered his vessel off the coast of County Donegal, Ireland, so severely that he called out to God for mercy, a moment that marked his spiritual conversion. He continued his slave trading career until 1754 or 1755, when he ended his seafaring altogether and began studying Christian theology.
Ordained in the Church of England in 1764, Newton became curate of Olney, Buckinghamshire, where he began to write hymns with poet William Cowper. “Amazing Grace” was written to illustrate a sermon on New Year’s Day of 1773. It is unknown if there was any music accompanying the verses; it may have simply been chanted by the congregation. It debuted in print in 1779 in Newton and Cowper’s Olney Hymns but settled into relative obscurity in England. In the United States, however, “Amazing Grace” was used extensively during the Second Great Awakening in the early 19th century. It has been associated with more than 20 melodies, but in 1835 it was joined to a tune named “New Britain” to which it is most frequently sung today. Source – Wiki
Music video by Il Divo performing Amazing Grace. (C) 2008 Simco Limited under exclusive license to Sony Music Entertainment UK Limited