Ecclesiastes 8:7

for he does not know that which shall be; nor when it shall be. Who will teach it to him?

Ecclesiastes 6:12

For who knows what is good for man in this life, all the days of the life of his vanity which he causes to be as a shadow? for who shall teach the man what shall be after him under the sun?

Ecclesiastes 9:12

For man also does not know his time: as the fishes that are taken in an evil net and as the birds that are caught in the snare, so are the sons of men snared in the evil time, when it falls suddenly upon them.

Proverbs 24:22

for their calamity shall rise suddenly; and the ruin of them both, who shall know it?

Ecclesiastes 10:14

The fool multiplies words and says, Man cannot tell what shall be, and what shall be after him, who can tell him?

Proverbs 29:1

He that being often reproved hardens his neck shall suddenly be destroyed and that without remedy.

Ecclesiastes 3:22

Therefore I perceive that there is nothing better than that a man should rejoice in his own works; for that is his portion; for who shall bring him to see what shall be after him?

Matthew 24:44

Therefore be ye also ready; the Son of man is to come in the hour that ye think not.

Matthew 24:50

the lord of that slave shall come in a day when he does not look for him and in an hour that he is not aware of

Matthew 25:6-13

And at midnight there was a cry made, Behold, the bridegroom comes; go ye out to meet him.

1 Thessalonians 5:1-3

But of the times and the seasons, brethren, ye have no need that I write unto you.

Treasury of Scripture Knowledge

Summary

For he knoweth not that which shall be: for who can tell him when it shall be?

Bible References

He knoweth

Ecclesiastes 6:12
For who knows what is good for man in this life, all the days of the life of his vanity which he causes to be as a shadow? for who shall teach the man what shall be after him under the sun?
Ecclesiastes 9:12
For man also does not know his time: as the fishes that are taken in an evil net and as the birds that are caught in the snare, so are the sons of men snared in the evil time, when it falls suddenly upon them.
Ecclesiastes 10:14
The fool multiplies words and says, Man cannot tell what shall be, and what shall be after him, who can tell him?
Proverbs 24:22
for their calamity shall rise suddenly; and the ruin of them both, who shall know it?
Proverbs 29:1
He that being often reproved hardens his neck shall suddenly be destroyed and that without remedy.
Matthew 24:44
Therefore be ye also ready; the Son of man is to come in the hour that ye think not.
Matthew 25:6
And at midnight there was a cry made, Behold, the bridegroom comes; go ye out to meet him.
1 Thessalonians 5:1
But of the times and the seasons, brethren, ye have no need that I write unto you.