RAV KOOK ON Va'eira Part 2: God's Name

Why do we find different names for God in the Torah? Different names correspond to the different ways in which God reveals Himself in the world. The Tetragrammaton, the special name composed of the four letters Yud-Hey-Vav-Hey, corresponds to a level of Divine revelation that was concealed before Moses’ time. “I revealed Myself to Abraham, Isaac and Jacob as El Shaddai [God Almighty]. But I was not known to them through My name Y-H-V-H. (Ex. 6:3) What is the significance of these two names of God? Why did only Moses’ generation merit knowledge of the Tetragrammaton? In the same prophetic communication to Moses, God contrasted the Patriarchs’ ties to the Land of Israel with that of their descendants. Abraham, Isaac, and Jacob were only travelers and foreigners in the Land: “I made My covenant with them, giving them the Land of Canaan, the land of their wanderings, where they lived as foreigners.” (Ex. 6:4) Their descendants, on the other hand, were destined to settle permanently in the Land: “I will give it to you as an eternal inheritance” (Ex. 6:8). Is there some connection between the different names for God and residence in Eretz Yisrael?