John 6:27
“Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.”
And when they had found him on the other side of the sea, they said unto him, Rabbi, when camest thou hither?
Jesus answered them and said, Verily, verily, I say unto you, Ye seek me, not because ye saw the miracles, but because ye did eat of the loaves, and were filled.
Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
Then said they unto him, What shall we do, that we might work the works of God?
Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.”
“Blessed are they which do hunger and thirst after righteousness: for they shall be filled.”
“Set your affection on things above, not on things on the earth.”
“For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:”
“Wherefore do ye spend money for that which is not bread? and your labour for that which satisfieth not? hearken diligently unto me, and eat ye that which is good, and let your soul delight itself in fatness.”