John 6:27-29

WNT(i) 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." 28 "What are we to do," they asked, "in order to carry out the things that God requires?" 29 "This," replied Jesus, "is above all the thing that God requires--that you should be believers in Him whom He has sent."