Well, God doesn't intervene in many of the situations we would like Him to because He would have to intervene in everything that we say and do that is wrong right the way through to some of the most terrible things happening in nations. What He does is He gives us signs that He is with us and that we can draw help from Him. Jesus changed water into wine. That had no function really. They had already run out of wine in the party so he was only aiding and abetting more drinking.