Comentario citado sobre Deuteronómio 2:17

Another explanation as to why it says “from among the children of Israel”: According to the explanation that prophecy only rests upon the prophets of Israel through the merit of Israel, as Rashi explains in Parashat Devarim on the verse And the Lord spoke to me (Deuteronomy 2:17). This comes to tell us that even though Aaron should have been distanced [from serving as High Priest], nevertheless God brought him near for two reasons: First, because of Moses, as he is his brother, and Aaron’s honor is Moses’s honor. And second, through the merit of the children of Israel who needed a priest like this who makes peace. Therefore both phrases are stated: And you bring near to yourself and from among the children of Israel.

The phrase when all had expired… is connected to the upcoming verse: God spoke to me: After all were finished dying, God said that we should pass the border of Ar.