45 Heb “all my works that my hands had done.”
46 Heb “and all the toil with which I had toiled in doing it.” The term עָמַל (’amal, “toil”) is repeated to emphasize the burden and weariness of the labor which Qoheleth exerted in his accomplishments.
47 Heb “Behold!”
48 The term הַכֹּל (hakkol, “everything” or “all”) must be qualified and limited in reference to the topic that is dealt with in 2:4–11. This is an example of synecdoche of general for the specific; the general term “all” is used only in reference to the topic at hand. This is clear from the repetition of כֹּל (kol, “everything”) and (“all these things”) in 2:11.
49 The phrase “achievements and possessions” does not appear in the Hebrew text, but is supplied in translation for clarity.
50 The term “ultimately” does not appear in the Hebrew text, but is supplied in the translation for clarity.
51 The parallelism with יִתְרוֹן (yitron), “profit; advantage; gain”) indicates that הֶבֶל (hevel) should be nuanced as “profitless, fruitless, futile” in this context. While labor offers some relative and temporal benefits, such as material acquisitions and the enjoyment of the work of one’s hands, there is no ultimate benefit to be gained from secular human achievement.
52 The noun יִתְרוֹן (yitron, “profit”) has a two-fold range of meanings: (1) “what comes of [something]; result” (Eccl 1:3; 2:11; 3:9; 5:8, 15; 7:12; 10:10) and (2) “profit; advantage” (Eccl 2:13; 10:11); see יִתְרוֹי. It is derived from the noun יֶתֶר (yeter, “what is left behind; remainder”; I יֶתֶר). The related verb יָתַר (yatar) denotes “to be left over; to survive” (Niphal) and “to have left over” (Hiphil); see יתר. When used literally, יִתְרוֹן refers to what is left over after expenses (gain or profit); when used figuratively, it refers to what is advantageous or of benefit. Though some things have relative advantage over others (e.g., light over darkness, and wisdom over folly in 2:13), there is no ultimate profit in man’s labor due to death.
53 The phrase “from them” does not appear in the Hebrew text, but is supplied in the translation for clarity.
54 Heb “under the sun.”

In other versions

ESVEnglish Standard Version

Then I considered all that my hands had done and the toil I had expended in doing it, and behold, all was vanity and a striving after wind, and there was nothing to be gained under the sun.

NIVNew International Version (2011)

Yet when I surveyed all that my hands had done

and what I had toiled to achieve,

everything was meaningless, a chasing after the wind;

nothing was gained under the sun.

CSBChristian Standard Bible

When I considered all that I had accomplished and what I had labored to achieve, I found everything to be futile and a pursuit of the wind. There was nothing to be gained under the sun.

NLTNew Living Translation

But as I looked at everything I had worked so hard to accomplish, it was all so meaningless—like chasing the wind. There was nothing really worthwhile anywhere.

LEBThe Lexham English Bible

Yet when I considered all the effort which I expended and the toil with which I toiled to do, then behold, “Everything is vanity and chasing wind! There is nothing profitable under the sun!”

KJV 1900King James Version

Then I looked on all the works that my hands had wrought, and on the labour that I had laboured to do: and, behold, all was vanity and vexation of spirit, and there was no profit under the sun.

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