How will the change be everlasting? By removing all obstacles to change and the final obstacle—stopping. Change is an everlasting-ever evolving process. The only certainty then is change. No statues or monuments.  God reminds us: You saw no image at Sinai. Don’t pause or pose—neither accept the status quo for yourself nor start posing for it now (Aunt Em to the farmhand who is the tinman later in the story).