"His most important works are his commentaries on Romans (1835), Ephesians (1856), 1 Corinthians (1857), 2 Corinthians (1859), as well as Constitutional History of the Presbyterian Church in the United States (2 vols., 1839-40), Systematic Theology (3 vols., 1871-3), and What is Darwinism? (1874). He was an outstanding defender of Calvinism, and has a claim to be considered one of the best theologians and Bible commentators America has produced." [1] Charles Holdge was the father of A. A. Hodge.