The Mysteries of God

The author discusses matters that prior to the New Testament had not been revealed.  The following chapter titles indicate subjects covered:

The 'Secret Things', 'Stewards of the Mysteries of God', The Mysteries of the Kingdom of Heaven, The Mystery of the Olive Tree, The Great Mystery of Christ and the Church, The Mystery of Piety, The Mystery of the Rapture of the Saints, "The Mystery of Lawlessness', and The Mystery of God Finished