The best-known example of this is William Wilberforce, a key figure in the so-called Clapham Sect, whose conversion to “evangelicalism” (in this context, Christians who held to a high view of Scripture, emphasized personal conversion, and believed that Scripture should be applied to every area of life) moved him to lead the battle in Parliament to abolish the slave trade (a fight that took twenty years) and then slavery itself (which took another twenty-six years). He was inspired in this work in part by the last letter John Wesley ever wrote, which encouraged him to pursue this battle, but
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