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.

Come to me, all who labor and are heavy laden, and I will give you rest.

For we know that the whole creation has been groaning together in the pains of childbirth until now.

Man

Again I saw all the oppressions that are done under the sun. And behold, the tears of the oppressed, and they had no one to comfort them! On the side of their oppressors there was power, and there was no one to comfort them.

That which has been is far off, and deep, very deep; who can find it out?

The eye

one person who has no other, either son or brother, yet there is no end to all his toil, and his eyes are never satisfied with riches, so that he never asks, "For whom am I toiling and depriving myself of pleasure?" This also is vanity and an unhappy business.

He who loves money will not be satisfied with money, nor he who loves wealth with his income; this also is vanity.

My soul will be satisfied as with fat and rich food, and my mouth will praise you with joyful lips,

Sheol and Abaddon are never satisfied, and never satisfied are the eyes of man.

The leech has two daughters: Give and Give. Three things are never satisfied; four never say, "Enough":

"Blessed are those who hunger and thirst for righteousness, for they shall be satisfied.

They shall hunger no more, neither thirst anymore; the sun shall not strike them, nor any scorching heat.

General references

The more words, the more vanity, and what is the advantage to man?