Moses’ first miracle was a plague turning water into blood which speaks of judgement. Jesus’ first miracle of turning water into wine speaks of grace.
Here, Jesus comes to a wedding as a guest, then he shows himself as the Son of God by becoming the host and providing extra wine and what’s more - the best wine for all the guests.
Amongst other things, this miraculous sign happened because the servants co-operated with Jesus. When we co-operate with God’s time and agenda we can be greatly blessed, because God can give more than you would expect.
John 2:10 “Everyone brings out the choice wine first and then the cheaper wine after the guests have had too much to drink; but you have saved the best till now.”