Jealous of the Mother Church.
“Man” is John and Charles Wesley
Methodist preachers focused particularly on evangelizing people who had been “neglected” by the established Church of England. Wesley and his assistant preachers organized the new converts into Methodist societies.[26] These societies were divided into groups called classes.
] Three teachings that Methodists saw as the foundation of Christian faith were:
1. People are all, by nature, “dead in sin”.
2. They are “justified by faith alone”
3. Faith produces inward and outward holiness.[30]
https://en.wikipedia.org/wiki/Methodist_Church_of_Great_Britain
https://www.gotquestions.org/Methodists.html