The mother of Jesus saith to him. It may be doubted if she expected or asked any thing from her Son, since he had not yet performed any miracle; and it is possible that, without expecting any remedy of this sort, she advised him to give some pious exhortations which would have the effect of preventing the guests from feeling uneasiness, and at the same time of relieving the shame of the bridegroom. I consider her words to be expressive of (sumpatheia) earnest compassion; for the holy woman, perceiving that those who had been invited were likely to consider themselves as having been treated with disrespect, and to murmur against the bridegroom, and that the entertainment might in that way be disturbed, wished that some means of soothing them could be adopted. Chrysostom throws out a suspicion that she was moved by the feelings of a woman to seek I know not what favor for herself and her Son; but this conjecture is not supported by any argument.

When they wanted wine - A marriage feast among the Jews was commonly observed for seven or eight days. It is not probable that there would be a want of wine at the marriage itself, and it is possible, therefore, that Jesus came there some time during the marriage feast.
They have no wine - It is not known why Mary told this to Jesus. It would seem that she had a belief that he was able to supply it, though he had as yet worked no miracle.

They have no wine - Though the blessed virgin is supposed to have never seen her son work a miracle before this time, yet she seems to have expected him to do something extraordinary on this occasion; as, from her acquaintance with him, she must have formed some adequate idea of his power and goodness.

(2) And when they wanted wine, the mother of Jesus saith unto him, They have no wine.
(2) Christ takes good enough care of our salvation, and therefore has no need of others to remind of it.

And when they wanted wine,.... Or wine was wanting; not through the intemperance of the guests, rather through the poverty of the family, who were not able to provide very largely; and it may be by reason of a larger number of guests than were expected; however, so it was ordered by Divine Providence, that there might be an opportunity for Christ to manifest forth his glory:
the mother of Jesus saith unto him, they have no wine; being concerned for the family, lest they should be put to shame and disgrace, and the entertainment should not proceed with becoming credit and honour; and knowing the power of Christ to help in this time of necessity, she modestly moves it to him, perhaps by a whisper, sitting next him; or, it may be, might call him out, and just drop the hint; being well persuaded of his power, as she might; not from any miracles wrought by him in her family for the support of it, when in distress; for as Christ wrought no miracle, in the time of his public ministry, for the support of himself, or his disciples, but for others, it is not likely he should do it for his family in private life; but from the wonderful things told her by the angel that brought the news of her conception, and by the shepherds, and by Simeon and Anna, which she had laid up in her heart; and from his being the Messiah, who, according to the general belief of the nation, was to work miracles; and particularly from the last words of the preceding chapter; See Gill on John 1:50, for she might be present at the delivery of them; and therefore might hope that as this was the first opportunity that offered after, that he would display his power in supplying the family with wine in this time of exigence.

no wine--evidently expecting some display of His glory, and hinting that now was His time.

And when they wanted wine. The Revision says, "When the wine failed." For some cause, perhaps from a larger number of guests than was expected, the wine gave out. In the East, where hospitality is so lavish, this would cause great mortification.
The mother of Jesus saith unto him, They have no wine. The solicitude of Mary could hardly be expected from one not a relative, but why she appeal to Jesus? In part, because it was natural speak to him in her perplexity, and in part, likewise, because she hoped he would meet the difficulty.

And wine falling short - How many days the solemnity had lasted, and on which day our Lord came, or how many disciples might follow him, does not appear. His mother saith to him, They have not wine - Either she might mean, supply them by miracle; or, Go away, that others may go also, before the want appears.