The Staff That Does God's Errand and the Name Read Differently

"And this staff you shall take in your hand" (Exodus 4:17): the Holy One, blessed be He, said to him, "Moses, if you do not wish to perform My errand, this rod will perform My errand; but I wish to grant you merit, and I will place many miracles in your hand: the manna, the well, the Sabbath, the clouds of glory, and the Torah." Rabbi Avina raised a contradiction: it is written, "This is My Name forever" (Exodus 3:15), and it is written, "and this is My remembrance for all generations." The Holy One, blessed be He, said: "Not as I am written am I read. I am written with Yod-Heh [the Tetragrammaton], and I am read with Alef-Dalet [Adonai, the Lord]." Rava intended to expound it in a public lecture; a certain elder said to him, "It is written 'forever' [le-olam, spelled defectively to read le-allem, to conceal]." (Zechariah 14:9) "On that day the Lord shall be One and His Name One." Is He then not One now? Said Rav Acha bar Chanina: the world to come is not like this world. In this world, over good tidings one says "Blessed is the Good and the Doer of good," and over bad tidings one says "Blessed is the true Judge"; but in the world to come it is all "the Good and the Doer of good."