Bonaventure

And he adds the reason; whence he says: For every man who eats and drinks sees good from his labor, and there is a surplus of meaning here, so that the sense is: he who eats and drinks sees good from his labor, because he immediately has his reward; whence he says: And this is the gift of God: below in chapter 5: "Every man to whom God has given riches and has granted him the power to eat from them, this is the gift of God." For every man who eats and drinks: supply: from Scripture, eats the difficult things and drinks the easy …

Commentary on Ecclesiastes, Chapter 3 ↗