'Yet' in the Bible

All the rivers flow into the sea,Yet the sea is not full.To the place where the rivers flow,There they flow again.

I explored with my mind how to gratify myself with wine while [at the same time] having my mind remain steady and guide me wisely; and how to take control of foolishness, until I could see what was good for the sons of men to do under heaven all the days of their lives.

The wise man’s eyes are in his head, but the fool walks in darkness; and yet I know that [in the end] one fate happens to them both.

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).

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.

He has made everything beautiful and appropriate in its time. He has also planted eternity [a sense of divine purpose] in the human heart [a mysterious longing which nothing under the sun can satisfy, except God]—yet man cannot find out (comprehend, grasp) what God has done (His overall plan) from the beginning to the end.

But better off than either of them is the one who has not yet been born, who has not seen the evil deeds that are done under the sun.

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.

There is no end to all the people; to all who were before them. Yet those who come later will not be happy with him. Surely this also is vanity (emptiness) and chasing after the wind.

a man to whom God has given riches and wealth and honor, so that he lacks nothing of all that he desires, yet God has not given him the power or capacity to enjoy them [all those things which are gifts from God], but a stranger [in whom he has no interest succeeds him and] enjoys them. This is vanity and it is a [cause of] great distress.

It has not seen the sun nor had any knowledge; yet it has more rest and is better off than he.

Even if the other man lives a thousand years twice over and yet has seen no good and experienced no enjoyment—do not both go to one place [the grave]?”

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

Though a sinner does evil a hundred times and his life [seemingly] is prolonged [in spite of his wickedness], still I know that it will be well with those who [reverently] fear God, who fear and worship Him openly [realizing His omnipresence and His power].

and I saw all the work of God, I concluded that man cannot discover the work that is done under the sun. Even though man may labor in seeking, he will not discover; and [more than that], though a wise man thinks and claims he knows, he will not be able to find it out.

But there was found in it a poor wise man, and by his wisdom he rescued the city. Yet no man [seriously] remembered that poor man.

Yes, if a man should live many years, let him rejoice in them all; yet let him remember the days of darkness, for they will be many. All that is to come will be futility.