Ecclesiastes 9:12

Until an arrow pierces through his liver; As a bird hastens to the snare, And he does not know that it will cost him his soul.

By transgression an evil man is ensnared, But the righteous sings with joy and is glad.

For the fate of the sons of men and the fate of beasts is the same fate for each of them. As one dies so dies the other, and they all have the same breath. So there is no advantage for man over beast, for all is vanity.

If no one knows what will happen, who can tell him when it will happen?