Ecclesiastes 6:7

All the labor of man is for his mouth, and yet the appetite is not filled.

Proverbs 16:26

He that laboreth laboreth for himself; for his mouth craveth it of him.

Genesis 3:17-19

And to Adam he said, Because thou hast hearkened to the voice of thy wife, and hast eaten of the tree of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;

Ecclesiastes 5:10

He that loveth silver shall not be satisfied with silver; nor he that loveth abundance with increase: this is also vanity.

Ecclesiastes 6:3

If a man begetteth a hundred children, and liveth many years, so that the days of his years are many, and his soul is not filled with good, and also that he hath no burial; I say, that an untimely birth is better than he.

Matthew 6:25

Therefore I say to you, Be not anxious for your life, what ye shall eat, or what ye shall drink; nor yet for your body, what ye shall put on. Is not the life more than food, and the body than raiment?

Luke 12:19

And I will say to my soul, Soul, thou hast abundance of goods laid up for many years; take thy ease, eat, drink, and be merry.

John 6:27

Labor not for the food which perisheth, but for that food which endureth to everlasting life, which the Son of man will give to you: for him hath God the Father sealed.

1 Timothy 6:6-8

But godliness with contentment is great gain.

Treasury of Scripture Knowledge

Summary

All the labour of man is for his mouth, and yet the appetite is not filled.

Bible References

The labour

Genesis 3:17
And to Adam he said, Because thou hast hearkened to the voice of thy wife, and hast eaten of the tree of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;
Proverbs 16:26
He that laboreth laboreth for himself; for his mouth craveth it of him.
Matthew 6:25
Therefore I say to you, Be not anxious for your life, what ye shall eat, or what ye shall drink; nor yet for your body, what ye shall put on. Is not the life more than food, and the body than raiment?
John 6:27
Labor not for the food which perisheth, but for that food which endureth to everlasting life, which the Son of man will give to you: for him hath God the Father sealed.
1 Timothy 6:6
But godliness with contentment is great gain.

Appetite

Ecclesiastes 6:3
If a man begetteth a hundred children, and liveth many years, so that the days of his years are many, and his soul is not filled with good, and also that he hath no burial; I say, that an untimely birth is better than he.
Ecclesiastes 5:10
He that loveth silver shall not be satisfied with silver; nor he that loveth abundance with increase: this is also vanity.
Luke 12:19
And I will say to my soul, Soul, thou hast abundance of goods laid up for many years; take thy ease, eat, drink, and be merry.