John Wesley's explanatory notes on the Old Testament were written several years after his notes on the New Testament, and are based on the earlier works of Matthew Henry's 'Exposition of the Old and New Testaments', and Matthew Poole's 'English Annotations on the Holy Bible'. Extracts from both of these works are paraphrased and abridged by Wesley for the Explanatory Notes on the Old Testament, unlike the Explanatory Notes on the New Testament, which were entirely of his own composition.
John Wesley is recognized as the founder of Methodism. An acclaimed preacher, Wesley travelled extensively on horseback and drew large crowds for his outdoor sermons. A contemporary of William Wilberforce, Wesley was a strong voice opposing slavery in England and the United States. His influence upon modern Christianity can be seen by the large number of Methodist organizations in the Wesleyan tradition all over the world.