Albert Barnes held a prominent place in the New School branch of the Presbyterians during the Old School-New School Controversy, to which he adhered on the division of the denomination in 1837; he had been tried for heresy in 1836, mostly due to the views he expressed in Notes on Romans of the imputation of the sin of Adam, original sin and the atonement; the bitterness stirred up by this trial contributed towards widening the breach between the conservative and the progressive elements in the church. During the Old School-New School split in the Presbyterian Church in the United States of America, Barnes allied himself with the New School Branch. He served as moderator of the General Assembly to the New School branch in 1851. He was an eloquent preacher, but his reputation rests chiefly on his expository works, which are said to have had a larger circulation both in Europe and America than any others of their class. Of the well-known Notes on the New Testament, it is said that more than a million volumes had been issued by 1870. The Notes on Job, the Psalms, Isaiah and Daniel were also popularly distributed. The popularity of these works rested on how Barnes simplified Biblical criticism so that new developments in the field were made accessible to the general public. Barnes was the author of several other works, including Scriptural Views of Slavery and The Way of Salvation. A collection of his theological works was published in Philadelphia in 1875. In his famous 1852 oratory, "What to the Slave Is the Fourth of July?", Frederick Douglass quoted Barnes as saying: "There is no power out of the church that could sustain slavery an hour, if it were not sustained in it." In Barnes' book The Church and Slavery, Barnes excoriates slavery as evil and immoral, and calls for it to be dealt with from the pulpit "as other sins and wrongs are". While serving as pastor at the First Presbyterian Church of Philadelphia, Barnes became the President of the PennsylvaniaBible Society in 1858 – a position he served until his death in 1870. He served at First Presbyterian Church of Philadelphia until 1868. He was then granted the title Pastor Emeritus.
Death
Barnes died in Philadelphia on December 24, 1870. His widow wrote, "His death was sudden and entirely unexpected. His health, with the exception of his eyesight, seemed to be perfect, -- mind and body active and full of energy. The day he died, he spent the morning in the city, dined with us cheerfully as usual, and afterwards walked with my daughter about a mile and a quarter into the country, to visit some friends in deep affliction. They reached the house, and he conversed for a few minutes, when he threw back his head, breathed rather heavily, and before the physician, who was immediately summoned, could arrive, he had passed away. In an instant, as it seemed, without pain or any consciousness of entering the 'dark valley,' he was with his Saviour."