'Labor' in the Bible

Whatever my eyes looked at with desire I did not refuse them. I did not withhold from my heart any pleasure, for my heart was pleased because of all my labor; and this was my reward for all my labor.

Then I considered all which my hands had done and labored to do, and behold, all was vanity and chasing after the wind and there was no profit (nothing of lasting value) under the sun.

So I hated all the fruit (gain) of my labor for which I had labored under the sun, because I must leave it to the man who will succeed me.

And who knows whether he will be a wise man or a fool? Yet he will have control over all the fruit of my labor for which I have labored by acting wisely under the sun. This too is vanity (futility, self-conceit).

So I turned aside and let my heart despair over all the fruit of my labor for which I had labored under the sun.

For there is a man who has labored with wisdom and knowledge and skill, yet gives his legacy to one who has not labored for it. This too is vanity and a great evil.

For what does a man get from all his labor and from the striving and sorrow of his heart with which he labors under the sun?

There is nothing better for a man than to eat and drink and assure himself that there is good in his labor. Even this, I have seen, is from the hand of God.

I have seen the task which God has given to the sons of men with which to occupy themselves.

and also that every man should eat and drink and see and enjoy the good of all his labor—it is the gift of God.

I have seen that every [effort in] labor and every skill in work comes from man’s rivalry with his neighbor. This too is vanity (futility, false pride) and chasing after the wind.

There was a certain man—without a dependent, having neither a child nor a brother, yet there was no end to all his labor. Indeed, his eyes were not satisfied with riches and he never asked, “For whom do I labor and deprive myself of pleasure?” This too is vanity (a wisp of smoke, self-conceit); yes, it is a painful effort and an unhappy task.

Two are better than one because they have a more satisfying return for their labor;

As he came naked from his mother’s womb, so he will return as he came; and he will take away nothing from all his labor that he can carry in his hand.

Behold, here is what I have seen to be good and fitting: to eat and drink, and to find enjoyment in all the labor in which he labors under the sun during the few days of his life which God gives him—for this is his [allotted] reward.

All the labor of man is for his mouth [for self-preservation and enjoyment], and yet the desire [of his soul] is not satisfied.

The labor of a fool so wearies him [because he is ignorant] that he does not even know how to go to a city.