[MHGinTN]

Nice try at rationalizing away the miraculous in the scene. But please, m’Lady, look at the whole scene not just the chronology which supports vagueness. We are being given the scene as the first ‘recorded’ Jesus miracle in the New Testament, but the miraculous was not a foreign thing to Mary. The Magnificat gives us a soaring scene of Mary's faith and the power thereof. Consider what must have been the thinking of the servants who brought the hand-washing jugs of water after Mary told them to do whatever He says ... The scene is one of Mary having a clue and setting the scene for what follows.

[metmom]

Jesus said that His time had not yet come. There is no indicator that He performed any miracles as of yet.

Matter of fact, if He had, people would have been less likely to be amazed at what happened and probably it would have been recorded somewhere.

IMO, concluding that they knew a miracle was in the works is reading more into it than the passage implies. No doubt the servants were very confused at filling jars with water when the issue was that there was no wine and Jesus was going to deal with it.