Mohler posed but never answered how founders could be saints and slaveholders

Evidence

Mohler even asks the right ultimate question in his cover letter to the seminary report: … “Eventually, the questions come home. How could our founders, James P. Boyce, John Broadus, Basil Manly Jr., and William Williams, serve as such defenders of biblical truth, the gospel of Jesus Christ, and the confessional convictions of this Seminary, and at the same time own human beings as slaves—based on an ideology of race—and defend American slavery as an institution?” — Robert P. Jones, White Too Long, 173