Comentario citado sobre Isaías 13:21

Take for yourself a calf of the cattle for a sin offering. Some question why Aaron’s calf is brought as a sin offering while Israel’s calf is brought as a burnt offering. They explained that in the sin of the Golden Calf, Aaron did not sin in thought, as he certainly did not intend it for idolatry at all. His main sin was in the deed — that he actually made the calf, as it is written: And the Lord smote the people because they made the calf which Aaron made (Exodus 32:35). Why does it add which Aaron made? It comes to teach that Aaron sinned only in making the calf, but not in thought. Therefore his offering was a calf for a sin offering, which atones for sins of action. But Israel, who sinned also in thought, as they certainly intended it for idolatry, therefore their offering was a calf for a burnt offering, which comes to atone for sins of thought. What is difficult with this explanation is that Israel also sinned in deed, as they bowed down to it and sacrificed to it, so why didn’t they bring a calf as a sin offering for atonement? It seems to me that for the sin of sacrificing, they brought the goat for atonement, because it is said: And they shall no more sacrifice their sacrifices to demons (Leviticus 17:7). Where do we find that Israel sacrificed to goat-demons, that Scripture says no more? Rather, it certainly refers to what was said about the calf: and they sacrificed to it, because this sacrifice was certainly to goat-demons, to demons [that are] no-gods, as that entire incident was the work of Satan, and goat-demons dance there (Isaiah 13:21). Therefore it says, Take a young goat for a sin offering. But Aaron, who did not sacrifice to it at all, brought a calf as a sin offering to atone for making the calf.

And I gave Mount Seir to Esau: Onkeles, the Aramaic translation, interprets Har Seir as the Har Sheidin, a Mountain of Demons, based on the verse, "And there shall satyrs dance." (Is. 13:21) Mount Seir is the portion of Samael, who has a mighty storm (saar) in his heart, as it is written, "My Lord shall sound the ram's horn and advance in a stormy tempest." (Zach. 9:14) He is from the side of redness (evil) and therefore Esau is called Edom. Jacob, on the other hand, was smooth, the opposite of a man of Seir (hairy). He is stands apart and separated from the tempest and the bonds (of Seir). Therefore his image is on the throne of glory. He and his offspring went down to Egypt to pay the debt that was decreed at the Covenant of the Pieces (Gen. 15).

לשעירים .means TO THE DEMONS. Similar is (Isaiah 13:21) “and demons (ושעירים) shall dance there" (Sifra, Acharei Mot, Chapter 9 8).

לא שערום אבתיכם — This means, which your fathers feared not; more literally it means: Their hair (שער) did not stand up on end because of them — for it is the nature of a person’s hair to stand up out of fear. Thus is it (the word שערום) explained in Sifrei Devarim 318:15. But it is also possible to explain it as being connected with the noun in (Isaiah 13:21) “And שעירים shall dance there”; שעירים are demons (satyrs), and the meaning of our verse would then be: your fathers never made these satyrs.

a nonentity [Heb. בַּלָהוֹת.] Jonathan explained בַּלָהוֹת [as] as if you did not exist, and the exegetes explain it as a word for a place where the satyrs and demons dance.