Ecclesiastes 6:7

All the work of man is for his mouth, and still he has a desire for food.

Proverbs 16:26

The desire of the working man is working for him, for his need of food is driving him on.

Genesis 3:17-19

And to Adam he said, Because you gave ear to the voice of your wife and took of the fruit of the tree which I said you were not to take, the earth is cursed on your account; in pain you will get your food from it all your life.

Ecclesiastes 5:10

He who has a love for silver never has enough silver, or he who has love for wealth, enough profit. This again is to no purpose.

Ecclesiastes 6:3

If a man has a hundred children, and his life is long so that the days of his years are great in number, but his soul takes no pleasure in good, and he is not honoured at his death; I say that a birth before its time is better than he.

Matthew 6:25

So I say to you, Take no thought for your life, about food or drink, or about clothing for your body. Is not life more than food, and the body more than its clothing?

Luke 12:19

And I will say to my soul, Soul, you have a great amount of goods in store, enough for a number of years; be at rest, take food and wine and be happy.

John 6:27

Let your work not be for the food which comes to an end, but for the food which goes on for eternal life, which the Son of man will give to you, for on him has God the Father put his mark.

1 Timothy 6:6-8

But true faith, with peace of mind, is of great profit:

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 you gave ear to the voice of your wife and took of the fruit of the tree which I said you were not to take, the earth is cursed on your account; in pain you will get your food from it all your life.
Proverbs 16:26
The desire of the working man is working for him, for his need of food is driving him on.
Matthew 6:25
So I say to you, Take no thought for your life, about food or drink, or about clothing for your body. Is not life more than food, and the body more than its clothing?
John 6:27
Let your work not be for the food which comes to an end, but for the food which goes on for eternal life, which the Son of man will give to you, for on him has God the Father put his mark.
1 Timothy 6:6
But true faith, with peace of mind, is of great profit:

Appetite

Ecclesiastes 6:3
If a man has a hundred children, and his life is long so that the days of his years are great in number, but his soul takes no pleasure in good, and he is not honoured at his death; I say that a birth before its time is better than he.
Ecclesiastes 5:10
He who has a love for silver never has enough silver, or he who has love for wealth, enough profit. This again is to no purpose.
Luke 12:19
And I will say to my soul, Soul, you have a great amount of goods in store, enough for a number of years; be at rest, take food and wine and be happy.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain