John 6:27-29

Stop toiling and doing and producing for the food that perishes and decomposes [in the using], but strive and work and produce rather for the [lasting] food which endures [continually] unto life eternal; the Son of Man will give (furnish) you that, for God the Father has authorized and certified Him and put His seal of endorsement upon Him. They then said, What are we to do, that we may [habitually] be working the works of God? [What are we to do to carry out what God requires?] Jesus replied, This is the work (service) that God asks of you: that you believe in the One Whom He has sent [that you cleave to, trust, rely on, and have faith in His Messenger]. (John 6:27-29 AMP)