Do not boast about tomorrow; for you do not know what a day may bring forth.

Sow your seed in the morning, and do not stop working until the evening; for you do not know which activity will succeed -- whether this one or that one, or whether both will prosper equally.

Surely no one knows the future, and no one can tell another person what will happen.

You do not know about tomorrow. What is your life like? For you are a puff of smoke that appears for a short time and then vanishes.

Isaac said, "Since I am so old, I could die at any time.

Surely, no one knows his appointed time! Like fish that are caught in a deadly net, and like birds that are caught in a snare -- just like them, all people are ensnared at an unfortunate time that falls upon them suddenly.

Surely people go through life as mere ghosts. Surely they accumulate worthless wealth without knowing who will eventually haul it away."

When the king of Ai saw Israel, he and his whole army quickly got up the next day and went out to fight Israel at the meeting place near the Arabah. But he did not realize men were hiding behind the city.

Our adversaries also boasted, "Before they are aware or anticipate anything, we will come in among them and kill them, and we will bring this work to a halt!"

Disaster will overtake you; you will not know how to charm it away. Destruction will fall on you; you will not be able to appease it. Calamity will strike you suddenly, before you recognize it.

And now, compelled by the Spirit, I am going to Jerusalem without knowing what will happen to me there,

They replied, "The man questioned us thoroughly about ourselves and our family, saying, 'Is your father still alive? Do you have another brother?' So we answered him in this way. How could we possibly know that he would say, 'Bring your brother down'?"