Rashbam: Of all these deeds that people do, this is the best.

Seforno: I saw also that if one merited to attain wealth via efforts?.

Metzudas David: "Gam" refers to the end of the verse, "Matas Elokim." The ability to eat from his wealth is a gift, just like the wealth itself.

Metzudas Tziyon: Gold and silver, Kelim, flocks? This is like "bi'Nchasim Rabim Shuvu" (Yehoshua 22:8).

Rashi: He eats in his lifetime.

Ibn Ezra (19): He eats Mimenu (from it), but not too much.

Rashbam: He has the ability to rule over his wealth, and eat from his portion and rejoice in it and in his toil.

Metzudas David: He ruled over his heart to tilt it to benefit from the wealth. Metzudas Tziyon - Hishlito is authority and ability.

Rav Sadya Gaon: It is to benefit from his portion in the best way.

Rashi: This is in his death. Hashem merited him to engage in Torah and Mitzvos (Metzudas David - Tzedakah and Chesed) in his lifetime, in order to receive reward.

Ibn Ezra: It is the portion that he takes ¹ with him ² .

Metzudas David: It is not harsh for him to give from the wealth that he gathered with toil.

Rashbam: This is an esteemed gift that he received from Shamayim.

Seforno: This is rare, that one who attains wealth via efforts, he himself eats from it.