Where the Good Gold Is
One of the rivers flowing out of the Garden of Eden is described as encircling Eretz Yisrael “where there is gold and the gold of that Land is good” (Bereishit 2:11-12).
The gold here refers to the words of Torah which are more precious than gold itself. “The gold of that Land is good” teaches us that there is no Torah like the Torah of Eretz Yisrael and no wisdom like the wisdom of Eretz Yisrael (Bereishit Rabbah 16:4).