Ecclesiastes 2:11

Then I looked at all the works that my hands had worked, and at the labor that I had labored to do; and behold, all was vanity and a chasing after wind, and there was no profit under the sun.

Ecclesiastes 1:14

I have seen all the works that are done under the sun; and behold, all is vanity and a chasing after wind.

Ecclesiastes 1:3

What does man gain from all his labor in which he labors under the sun?

Genesis 1:31

God saw everything that he had made, and, behold, it was very good. There was evening and there was morning, a sixth day.

Exodus 39:43

Moses saw all the work, and behold, they had done it as Yahweh had commanded, even so had they done it: and Moses blessed them.

Ecclesiastes 2:17-23

So I hated life, because the work that is worked under the sun was grievous to me; for all is vanity and a chasing after wind.

Habakkuk 2:13

Behold, isn't it of Yahweh of Armies that the peoples labor for the fire, and the nations weary themselves for vanity?

1 Timothy 6:6

But godliness with contentment is great gain.

1 John 2:16-17

For all that is in the world, the lust of the flesh, the lust of the eyes, and the pride of life, isn't the Father's, but is the world's.

Treasury of Scripture Knowledge

Summary

Then I looked on all the works that my hands had wrought, and on the labour that I had laboured to do: and, behold, all was vanity and vexation of spirit, and there was no profit under the sun.

Bible References

I looked

Ecclesiastes 1:14
I have seen all the works that are done under the sun; and behold, all is vanity and a chasing after wind.
Genesis 1:31
God saw everything that he had made, and, behold, it was very good. There was evening and there was morning, a sixth day.
Exodus 39:43
Moses saw all the work, and behold, they had done it as Yahweh had commanded, even so had they done it: and Moses blessed them.
1 John 2:16
For all that is in the world, the lust of the flesh, the lust of the eyes, and the pride of life, isn't the Father's, but is the world's.

Behold

Ecclesiastes 2:17
So I hated life, because the work that is worked under the sun was grievous to me; for all is vanity and a chasing after wind.
Ecclesiastes 1:3
What does man gain from all his labor in which he labors under the sun?
Habakkuk 2:13
Behold, isn't it of Yahweh of Armies that the peoples labor for the fire, and the nations weary themselves for vanity?
1 Timothy 6:6
But godliness with contentment is great gain.

General references

Proverbs 14:13
Even in laughter the heart may be sorrowful, and mirth may end in heaviness.
Ecclesiastes 1:2
"Vanity of vanities," says the Preacher; "Vanity of vanities, all is vanity."
Ecclesiastes 3:9
What profit has he who works in that in which he labors?