Sforno on Deuteronomy 32:50/ספורנו על דברים ל״ב:נ׳

1ומות בהר, accept your death willingly so that it will be an atonement for your trespasses

2והאסף אל עמך, and thereby you will become part of the “bundle” of eternal life joining all the other deserving souls who have preceded you.