Relevant Words of God:
My entire management plan, which spans six thousand years, consists of three phases, or three ages: first, the Age of Law; second, the Age of Grace (which is also the Age of Redemption); and finally, the Age of Kingdom. My work in these three ages differs according to the nature of each age, but at each stage it accords with man’s needs—or rather, it varies according to the tricks that Satan employs in My war against it. The purpose of My work is to defeat Satan, to make manifest My wisdom and omnipotence, to expose all Satan’s tricks and thereby to save all of humanity, which lives under its domain.