NET
27 Do not work for the food that disappears, but for the food that remains to eternal life—the food which the Son of Man will give to you. For God the Father has put his seal of approval on him.”
Darby
27 Work not [for] the food which perishes, but [for] the food which abides unto life eternal, which the Son of man shall give to you; for him has the Father sealed, [even] God.
KJV
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.”