Comentario citado sobre Génesis 2:11

All other rivers are not referred to as יאורים except for the Nile... Rashi is answering the question: Why is it written היאור, with a definite article? [The answer is:] Perforce it refers to the known יאור, mentioned earlier — the four נהרות written in Bereishis (2:11). Accordingly, why is it not written נהר here, like it does there? Surely [the answer is:] If it was written נהר here, we would not know which נהר, as four נהרות were mentioned earlier. Thus it says יאור, meaning the נהר that has יאורים. And all other נהרות are not called יאורים, only the Nile, as Rashi goes on to explain. The Nile is the Pishon River mentioned in Bereishis, as Rashi explains there. When Rashi says, “All other rivers,” he is referring to the other three נהרות written in Bereishis.

Will You also kill an innocent nation. He prayed on behalf of his entire nation.

It should have said “the first day.” [You might ask:] Later it is written concerning the four rivers (2:11): “The name of the one is Pishon,” although afterwards it is written “the second” and “the third.” [Why does this not raise the same question?] The answer is: If there it would say “the first,” we might think that what is stated, “And from there it separated and became four headwaters” (2:10) means that the rivers separated off from one another successively, in four different places, rather than breaking into four headwaters at one place. For example, the second river might separate off several miles downstream from “the first” river, and so forth. Thus it says “one,” and not “first,” to prevent us from making this error. Accordingly, “second” and “third” reflects importance rather than location.

with brilliant gold Heb. בירקרק חרוץ. Dunash the son of Labrat interpreted חרוּץ as gold. Therefore, the Psalmist juxtaposed it to silver, and ירקרק חרוץ is the gold brought from the land of Havilah and from the land of Cush; very good gold, neither yellow nor red. Therefore, it is called ירקרק, as (Lev. 13:42): “reddish white (לבן אדמדם),” which is neither white nor red. Therefore, it is doubled: אדמדם, ירקרק.