What is the meaning of "Tov Yanchil Bnei Vanim"?
Rashi: A good person bequeaths his merit and money to his grandsons.
R. Yonah: A Tzadik merits to bequeath his estate to his sons and grandsons and from here and onwards.
Malbim: After teaching that evil pursues a sinner, and Hashem rewards Tzadikim, our verse explains why sometimes we see that Tzadikim are afflicted and Resha'im are serene. If the Tzadik did not receive his reward, it is in order to bequeath it to his grandsons. Hashem will pay reward to his sons and later generations. A Midrash says, Hashem told Moshe, had I paid the Avos' reward in their lifetimes, what would they bequeath to their children?
Why does it say "v'Tzafun la'Tzadik Cheil Chotei"?
Rashi: A sinner does not bequeath to his sons; his wealth is hidden (destined) for a Tzadik - "va'Tasem Esther Es Mordechai Al Beis Haman" (Esther 8:2).
R. Yonah: A Tzadik merits [to get a Rasha's wealth] - "Yachin v'Tzadik Yilbash" (Iyov 27:17).
Malbim: If you see that a Rasha's wealth endures, know that it will fall to a Tzadik; he is merely a guardian for it, until the Tzadik will inherit it - "Yachin (Rasha) v'Tzadik Yilbash."
