Ecclesiastes 2:11

And I looked upon all my works my hands made, and upon the labor I labored to do, and behold, all vanity and striving of the spirit, and no profit under the sun.

Ecclesiastes 1:14

I saw all the works they did under the sun; and behold, all vanity and striving of the spirit

Ecclesiastes 1:3

What the profit to a man in all the labor he will labor under the sun?

Genesis 1:31

And God will see every thing which he made: and lo, very good And the evening shall be, and the morning shall be the sixth day.

Exodus 39:43

And Moses will see all the work, and behold, they made it as Jehovah commanded, thus did they: and Moses praised them.

Ecclesiastes 2:17-23

And I hated life, for evil to me the work done under the sun: for all vanity and striving of the spirit

Habakkuk 2:13

Behold, is it not from Jehovah of armies, and the peoples shall labor in a sufficiency of fire, and the peoples shall be wearied in a sufficiency of emptiness?

1 Timothy 6:6

But devotion with contentment is great gain.

1 John 2:16-17

For every thing which in the world, the eager desire of the flesh, and the eager desire of the eyes, and the pride of life, is not of the Father, but is of the world.

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 saw all the works they did under the sun; and behold, all vanity and striving of the spirit
Genesis 1:31
And God will see every thing which he made: and lo, very good And the evening shall be, and the morning shall be the sixth day.
Exodus 39:43
And Moses will see all the work, and behold, they made it as Jehovah commanded, thus did they: and Moses praised them.
1 John 2:16
For every thing which in the world, the eager desire of the flesh, and the eager desire of the eyes, and the pride of life, is not of the Father, but is of the world.

Behold

Ecclesiastes 2:17
And I hated life, for evil to me the work done under the sun: for all vanity and striving of the spirit
Ecclesiastes 1:3
What the profit to a man in all the labor he will labor under the sun?
Habakkuk 2:13
Behold, is it not from Jehovah of armies, and the peoples shall labor in a sufficiency of fire, and the peoples shall be wearied in a sufficiency of emptiness?
1 Timothy 6:6
But devotion with contentment is great gain.

General references

Proverbs 14:13
Also in laughter the heart shall have pain, and its latter state of joy, grief.
Ecclesiastes 1:2
Vanity of vanities, said the preacher; vanity of vanities, all vanity.
Ecclesiastes 3:9
What the excellence of him working in what he labored?