'Sons of Men' in the Bible

And I gave my heart to searching out in wisdom all things which are done under heaven: it is a hard thing which God has put on the sons of men to do.

I made a search with my heart to give pleasure to my flesh with wine, still guiding my heart with wisdom, and to go after foolish things, so that I might see what was good for the sons of men to do under the heavens all the days of their life.

I got together silver and gold and the wealth of kings and of countries. I got makers of song, male and female; and the delights of the sons of men--girls of all sorts to be my brides.

I said in my heart, It is because of the sons of men, so that God may put them to the test and that they may see themselves as beasts.

Because the fate of the sons of men and the fate of the beasts is the same. As is the death of one so is the death of the other, and all have one spirit. Man is not higher than the beasts; because all is to no purpose.

Who is certain that the spirit of the sons of men goes up to heaven, or that the spirit of the beasts goes down to the earth?

Because punishment for an evil work comes not quickly, the minds of the sons of men are fully given to doing evil.

This is evil in all things which are done under the sun: that there is one fate for all, and the hearts of the sons of men are full of evil; while they have life their hearts are foolish, and after that--to the dead.

Even man has no knowledge of his time; like fishes taken in an evil net, or like birds taken by deceit, are the sons of men taken in an evil time when it comes suddenly on them.