1)
Verse 21 already discussed a Rasha repenting. Why is this repeated?
1.
Radak: Refer to 18:28:1:1.
2)
Why does it say "Es Nafsho Yechayeh"?
1.
Radak: He revives his Nefesh via his Teshuvah. Life and death are in his hand; they are based on his deeds.
2.
Malbim: The change is not due to Me; he revived his Nefesh. Tzedakah gives life to those who do it.
