Rabbi Eliezer's Rule of Meaning Explained in Another Place

Rabbi Eliezer the son of Rabbi Yose the Galilean says: by thirty-two rules the aggadah is expounded, and this is one of them: a matter that is not explained in its own place but is explained in another place. How so? "And the LORD God planted a garden in Eden" and "the LORD caused to grow every tree" (Genesis 2:8-9). I might understand that the Holy One, blessed be He, created in the Garden of Eden every tree of food and every kind of delicacy, but we have not heard that He created for it canopies of gold and precious stones and pearls. And where have we heard this? In another place, as it says, "You were in Eden, the garden of God... every precious stone was your covering" (Ezekiel 28:13).