John 6:28-30

Amplified Bible, Classic Edition

²⁸ 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?]

²⁹ 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].

³⁰ Therefore they said to Him, What sign (miracle, wonderwork) will ^[a]You perform then, so that we may see it and believe and rely on and adhere to You? What [supernatural] work have You [to show what You can do]?