John 2:1, 11

On the third day there was a wedding at Cana of Galilee, and the mother of Jesus was there

This, the first of His signs (attesting miracles), Jesus did in Cana of Galilee, and revealed His glory [displaying His deity and His great power openly], and His disciples believed [confidently] in Him [as the Messiah—they adhered to, trusted in, and relied on Him]. [Deut 5:24; Ps 72:19]