Interestingly, something too obvious is not seen by JWs.
God is non-interventionist, says Jesus through the famous story of prodigal son (Luke 15:11-32) because the Hero of the story, Father, permits son to use his free-will to any extent and accepts him when “he returns to his senses” and also there are many unambiguous statements such as Mathew 12:35; Revelation 22:11 …etc to this effect. This is because it is nature (not God) that rewards according to what each one does—qualitatively (Galatians 6:7) and quantitatively (Luke 6:38)
That means God would not say He leads the history (as implied in Genesis 3:15) nor Jesus would say He would appoint “a Faithful and Discreet Slave” class to lead people spiritually as given in Mathew 24:45. The wording itself suggests that it is coined by some thoughtless person because it gives the impression that Jesus tacitly condones the disgusting practice of slavery about which Abraham Lincoln rightly said: “If slavery is not wrong, nothing is wrong.”
What is new becomes old in due course. God filled the earth with provisions for life's enjoyment. (Genesis 1) Mankind (Adam, originally means mankind in Hebrew) enjoyed those provisions for some extended period; and then greed appeared which is symbolically presented through an individual Adam (what actually mankind did collectively); thus earth began to become old, became like hell. Now population is exploding and resources are depleted/destroyed. In due course, God will refill the earth with provisions for life's enjoyment. (Revelation 21:1-5) Only God can renew what has become old. This is common sense, not a thing to be preached.