תּלמוד אויף דברים 33:1

And Rabbi Chama the son of Rabbi Chanina said, "Why was Moses buried next to Beit Pe'or? So as to atone for the deed of Pe'or.

On the last day of the festival we read, “All the firstlings” [but first we read] the commandments and statutes [which precede it], and then “all the firstlings” (Deuteronomy 15:19-16:17) and for haftarah, “And when Solomon had finished” (I Kings 8:54-9:1). On the next day we read, “And this is the blessing” (Deuteronomy 33:1-34:12), and for haftarah, “And Solomon stood” (I Kings 8:23-53).