Why does it say "Yadati"?
Rashi: Since man's day of death is hidden from him [like we learn from verse 11, I know
What is the meaning of "Ein Tov Bam Ki Im
Rav Sadya Gaon: The only good person is one who
In what should he rejoice?
Rashi: In his portion.
Ibn Ezra: In his portion or wealth.
Seforno: In investigation. He will find intellectual and spiritual Simchah, which is greater than all physical Simchah.
What Tov should he do?
Rashi: What is good in Hashem's eyes.
Ibn Ezra #1: He should live a good life.
Ibn Ezra #2: He should do good in his lifetime, in order to receive good reward in his death.
Seforno: Good deeds, in order to resemble his Creator.
Metzudas David: Chesed and Tzedakah.