'Sons of Men' in the Bible

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.

Also, I collected for myself silver and gold and the treasure of kings and provinces. I provided for myself male singers and female singers, and the delights and pleasures of men—many concubines.

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

I said to myself regarding the sons of men, “God is surely testing them in order for them to see that [by themselves, without God] they are [only] animals.”

For the [earthly] fate of the sons of men and the fate of animals is the same. As one dies, so dies the other; indeed, they all have the same breath and there is no preeminence or advantage for man [in and of himself] over an animal, for all is vanity.

Because the sentence against an evil act is not executed quickly, the hearts of the sons of men are fully set to do evil.

For man also does not know his time [of death]; like fish caught in a treacherous net, and birds caught in the snare, so the sons of men are ensnared in an evil time when a dark cloud suddenly falls on them.