The LORD is willing to show signs, wonders and miracles for the benefit of saving or delivering. He is not into vain show, nor does it (vain show) create the faith that will last through hard trials.
Genuine acts of love will always convince those who are seeking that this is the real thing. Providing for the wedding, at the request of his mother, taking care of his family, that’s true love.
Jesus is on his way to the Passover – being set apart for sacrifice.
(Read John 2:11-13)