The author considers the always relevant problems of predestination, of human freedom and the omniscience of God, of justification and merit. He shows how God's grace has been made manifest and available in the successive stages of man's history--in the state of innocence, for example, and among the Jews, at Christ's coming, since Christ, among those who are outside the Church or in utter ignorance of Christ. Particular attention is paid to St. Paul's treatment of the question of grace, which the author expounds at some length.