Ecclesiastes 8:7
For he doesn't know that which will be; for who can tell him how it will be?
Ecclesiastes 6:12
For who knows what is good for man in life, all the days of his vain life which he spends like a shadow? For who can tell a man what will be after him under the sun?
Ecclesiastes 9:12
For man also doesn't know his time. As the fish that are taken in an evil net, and as the birds that are caught in the snare, even so are the sons of men snared in an evil time, when it falls suddenly on them.
Proverbs 24:22
for their calamity will rise suddenly; the destruction from them both -- who knows?
Ecclesiastes 10:14
A fool also multiplies words. Man doesn't know what will be; and that which will be after him, who can tell him?
Proverbs 29:1
He who is often rebuked and stiffens his neck will be destroyed suddenly, with no remedy.
Ecclesiastes 3:22
Therefore I saw that there is nothing better, than that a man should rejoice in his works; for that is his portion: for who can bring him to see what will be after him?
Matthew 24:44
Therefore also be ready, for in an hour that you don't expect, the Son of Man will come.
Matthew 24:50
the lord of that servant will come in a day when he doesn't expect it, and in an hour when he doesn't know it,
Matthew 25:6-13
But at midnight there was a cry, 'Behold! The bridegroom is coming! Come out to meet him!'
1 Thessalonians 5:1-3
But concerning the times and the seasons, brothers, you have no need that anything be written to you.