'Day' in the Bible

A good name is better than precious perfume,And the day of one’s death better than the day of one’s birth.

In the day of prosperity be joyful,But in the day of adversity consider thatGod has made the one as well as the other,So that man will not find out anything that will be after him.

There is no man who has power and authority over the wind to restrain the wind,Nor does he have authority over the day of death;There is no discharge [from service] during time of war,And evil will not rescue those who [actively seek to] practice it.

When I applied my mind to know wisdom and to see the activities [of mankind] that take place upon the earth—how some men seem to sleep neither day nor night—

in the day when the keepers of the house (hands, arms) tremble, and the strong men (feet, knees) bow themselves, and the grinders (molar teeth) cease because they are few, and those (eyes) who look through the windows grow dim;