John Elias was a Christian preacher in Wales in the first half of the 19th century, as part of the Welsh Methodist revival.

On Sundays they attended the parish church in the morning, and in the afternoon they would walk long distances together in order to hear some of the Methodist Revivalists.

He left home and stayed with Griffith Jones at Penmorfa, Caernarvon, a weaver by trade and also a local preacher.

The couple were happy, loving and deeply sympathetic with one another, they enjoyed a life of sweet companionship for over twenty-nine years, until her death on 2 April 1828.

May the Lord have mercy upon his church, and favour her again with such a minister as Elias was, like a flaming seraph in the pulpit."

John Elias was the author of numerous works in Welsh, all on a theological or doctrinal theme.

He contributed regularly to the early Calvinistic Methodist periodical Y Drysorfa and wrote an autobiography, which was published long after his death.