 We can take a lot of ingredients and make things, but we can't simply turn water into wine. Why? That he had power over creation. The water was not poured into the vessels where the wine had been stored. It was poured into vessels used for purification. He was showing his power over creation. Colossians 1.17 He is before all things and by him all things consist. He's in control of all things. He could do that with his creation.