John 6:28-29- 28 Then they said to him, “What must we do, to be doing the works of God?” 29 Jesus answered them, “This is the work of God, that you believe in him whom he has sent.” The greek word for believe in the above passage is pistevo. This word communicates something that goes beyond believing; it communicates the invitation to trust. “This is the work of God, that you trust in him whom he sent.”

There is a significant difference between believing and trusting.

Believe - to have confidence in the truth (faith)