From the early Church Fathers to now.
1 Patristic · 1 Jewish
“And he sent Juda before him to Joseph, to tell him; and that he should meet him in Gessen.”
“(v. 28) But Judah was sent ahead of him to Joseph, to meet him in the city of Heroum in the land of Ramesse. In Hebrew, there is no city called Heroum, nor a land called Ramesse, but only Gesen. Some Jews assert that Gesen is now called Thebaid. And what follows afterwards: He gave them the best land in Egypt, in Ramesse, which they believe to be the village called Arsenoites in ancient times.”
“להורת לפניו TO DIRECT HIM — Render this as the Targum does: to prepare a place for him and to show him how he should settle in it. לפניו BEFORE HIM — means before he should arrive there. A Midrashic comment is: להורת לפניו (in the sense of, “that there might be teaching before him”) — to establish for him a House of Study from which Teaching (הוראה or תורה) might go forth (Genesis Rabbah 95:3).”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.