Live joyfully with the wife whom thou lovest; so he limits him to lawful delights; whereby it is evident that Solomon doth not speak this in the person of an epicure, as some understand it. Of the life of thy vanity; of this vain and frail life; which expression he industriously useth to moderate men's affections even towards lawful pleasures, and to mind them of their duty and interest in making sure of a better life, and more solid comforts. Thy portion, allowed to thee by God, and the best part of worldly enjoyments, in this life; by which addition he is again admonishing him of seeking another portion in the future life.
Related Commentaries of Ecclesiastes 9:9
Ecclesiastes 9:9
9 Liveb joyfully with the wife whom thou lovest all the days of the life of thy vanity, which he hath given thee under the sun, all the days of thy vanity: for that is thy portion in this life, and in thy labour which thou takest under the sun.