Ecclesiastes 2:19

And who knows [whether] he will be wise or foolish? Yet he will exercise control of all [the fruit of] my toil with which I toiled wisely under the sun. This also [is] vanity!

Ecclesiastes 3:22

So I concluded that there is nothing better for a person than to enjoy [the fruit of] his labor, for this is his lot in life. {For no one knows what will happen in the future.}

1 Kings 12:14-20

He spoke to them according to the advice of the youngsters, saying, "My father made your yoke heavy, but I will add onto your yoke; my father disciplined you with whips, but I will discipline you with scorpions."

1 Kings 14:25-28

It happened in the fifth year of King Rehoboam that Shishak the king of Egypt came up against Jerusalem,

2 Chronicles 10:13-16

And the king answered them harshly, and King Rehoboam forsook the advice of the elders.

2 Chronicles 12:9-10

Then Shishak king of Egypt came up against Jerusalem, and he took the treasures out of the house of Yahweh and the treasures out of the king's house. He took everything. He also took the small shields of gold that Solomon had made.

Ecclesiastes 9:13

I have also seen this [example of] wisdom under the sun, and it [seemed] great to me.

Luke 16:8

And the master praised the dishonest manager, because he had acted shrewdly. For the sons of this age are shrewder than the sons of light with regard to their own generation.

James 1:17

Every good gift and every perfect gift is from above, coming down from the Father of lights, with whom there is no variation or shadow of change.

James 3:17

But the wisdom from above is first pure, then peaceful, gentle, obedient, full of mercy and good fruits, nonjudgmental, without hypocrisy,

Treasury of Scripture Knowledge

Summary

And who knoweth whether he shall be a wise man or a fool? yet shall he have rule over all my labour wherein I have laboured, and wherein I have shewed myself wise under the sun. This is also vanity.

Bible References

Who knoweth

Ecclesiastes 3:22
So I concluded that there is nothing better for a person than to enjoy [the fruit of] his labor, for this is his lot in life. {For no one knows what will happen in the future.}
1 Kings 12:14
He spoke to them according to the advice of the youngsters, saying, "My father made your yoke heavy, but I will add onto your yoke; my father disciplined you with whips, but I will discipline you with scorpions."
1 Kings 14:25
It happened in the fifth year of King Rehoboam that Shishak the king of Egypt came up against Jerusalem,
2 Chronicles 10:13
And the king answered them harshly, and King Rehoboam forsook the advice of the elders.
2 Chronicles 12:9
Then Shishak king of Egypt came up against Jerusalem, and he took the treasures out of the house of Yahweh and the treasures out of the king's house. He took everything. He also took the small shields of gold that Solomon had made.

Wise under

Ecclesiastes 9:13
I have also seen this [example of] wisdom under the sun, and it [seemed] great to me.
Luke 16:8
And the master praised the dishonest manager, because he had acted shrewdly. For the sons of this age are shrewder than the sons of light with regard to their own generation.
James 1:17
Every good gift and every perfect gift is from above, coming down from the Father of lights, with whom there is no variation or shadow of change.
James 3:17
But the wisdom from above is first pure, then peaceful, gentle, obedient, full of mercy and good fruits, nonjudgmental, without hypocrisy,

General references

Proverbs 17:25
A grief to his father [is] the child of a fool, and bitterness to her who bore him.
Ecclesiastes 1:2
"Vanity of vanities!" says the Teacher, "Vanity of vanities! All [is] vanity!"
Zechariah 9:6
A mongrel people will dwell in Ashdod, and I will cut down the pride of [the] Philistines.