It all began with the conversion of a young man from Hertfordshire called Joseph Irons (1785-1852), who very soon experienced a desire to preach Christ and, through a remarkable series of providential events, found himself preaching at Camden Chapel in Camberwell, a mile or so from the present site of Grove Chapel. After being rejected by those in charge of the church for preaching God’s sovereign grace and faith in Christ alone, a breakaway group called Irons as pastor of a new church, in a new building.