John 6:29

29 Jesus answered, “The work of God is this: to believe in the one he has sent.”

Read John 6:29 Using Other Translations

Jesus answered and said unto them,This is the work of God, that ye believe on him whom he hath sent.
Jesus answered them, "This is the work of God, that you believe in him whom he has sent."
Jesus told them, “This is the only work God wants from you: Believe in the one he has sent.”