Robert A PetersonRobert A. Peterson was professor of systematic theology at Covenant Theological Seminary in St. Louis, Missouri. He is author or editor of twenty books, including Salvation Accomplished by the Son: The Work of Christ (Crossway, 2012), Ou Secure Salvation: Preservation and Apostasy (P&R Publishing, 2009), and, coedited with Christopher Morgan, Hell Under Fire (Zondervan, 2004). Read More Read Less