Irenaeus Against Heresies Book II But, beyond reason inflated [with your own wisdom], ye presumptuously maintain that ye are acquainted with the unspeakable mysteries of God; while even the Lord, the very Son of God, allowed that the Father alone knows the very day and hour of judgment, when He plainly declares, "But of that day and that hour knoweth no man, neither the Son, but the Father only."[239]