Matthew 16:26

Why, what benefit will it be to a man if he gains the whole world but forfeits his life? Or what shall a man give to buy back his life?

Mark 8:36-37

Why, what does it benefit a man to gain the whole world and forfeit his life?

John 6:27

Bestow your pains not on the food which perishes, but on the food that remains unto the Life of the Ages--that food which will be the Son of Man's gift to you; for on Him the Father, God, has set His seal."

Treasury of Scripture Knowledge

Summary

What profit hath a man of all his labour which he taketh under the sun?

Bible References

Profit

Matthew 16:26
Why, what benefit will it be to a man if he gains the whole world but forfeits his life? Or what shall a man give to buy back his life?
Mark 8:36
Why, what does it benefit a man to gain the whole world and forfeit his life?
John 6:27
Bestow your pains not on the food which perishes, but on the food that remains unto the Life of the Ages--that food which will be the Son of Man's gift to you; for on Him the Father, God, has set His seal."