John 4:46-48

Amplified Bible, Classic Edition

⁴⁶ So Jesus came again to Cana of Galilee, where He had turned the water into wine. And there was a certain royal official whose son was lying ill in Capernaum.

⁴⁷ Having heard that Jesus had come back from Judea into Galilee, he went away to meet Him and began to beg Him to come down and cure his son, for he was lying at the point of death.

⁴⁸ Then Jesus said to him, Unless you see signs and miracles happen, you [people] never will believe (trust, have faith) at all.