Comentario citado sobre Jeremías 17:2

מזבח אדמה תעשה לי, seeing that the nations of the world construct around their places of worship, אשרות surrounding their altars with those, as we know from Judges 6,25 where G’d commands Gideon to destroy both, G’d tells the Jewish people that “even if you do construct an altar for Me do not construct it from materials other than earth.” A Jewish altar, according to our author, is to have a smooth surface only. [According to the verses mentioning אשרה, i.e. Deuteronomy 16,21 where the planting of such is prohibited, or Jeremiah 17,2 where such places of worship are associated with child offerings, it seems clear that an אשרה contains trees, which is the reason that in the Temple courtyard no trees were allowed. Ed.] ואם מזבח אבנים, even if you want to construct a more durable altar, one made of stones, as directed in Deuteronomy 26,5

אצל מזבח, for this is where they usually planted these asherot. We are told in Judges 6,25 that G’d told Gideon in a dream to destroy the asherah next to the altar of the Baal belonging to his father. Jeremiah 17,2 laments the fact that his own people had taken to planting such asherot near every green tree.

אצל מזבח, “next to an altar;” it was a common practice for the pagans to do this. This has been explained in Judges 6,25. Furthermore, the purpose of not allowing such trees in such locations was to prevent people seeing someone going there from thinking that that individual was on his way to worshipping an idol. Jeremiah 17,2, describes such worship of an asherah as a widely accepted practice.