'One's' in the Bible

I know that there is nothing better for them than to rejoice and to do good in one’s lifetime;

Lo, that which I have seen: It is good, because beautiful, to eat, and to drink, and to see good in all one's labour that he laboureth at under the sun, the number of the days of his life that God hath given to him, for it is his portion.

It is better to be content with what the eyes can see than for one's heart always to crave more. This continual longing is futile -- like chasing the wind.

A good name is better than precious ointment; and the day of death than the day of one's birth.

I gave my mind to knowledge and to searching for wisdom and the reason of things, and to the discovery that sin is foolish, and that to be foolish is to be without one's senses.

When I applied my mind to know wisdom and to observe the activity that is done on the earth (even though one’s eyes do not close in sleep day or night),

As dead flies cause the perfumer's ointment to stink, so also does a little foolishness to one's reputation of wisdom and honor.