John 2:3

when they wanted wine Better, when the wine failed. Perhaps the arrival of these six or seven guests caused the want; certainly it would make it more apparent. To Eastern hospitality such a mishap on such an occasion would seem a most disgraceful calamity.

They have no wine Much comment has here obscured a simple text. The family in which she was a guest was in a serious difficulty. Perhaps she felt herself partly responsible for the arrangements: certainly she would wish to help. What more natural than that she should turn to her Son and tell Him the difficulty? Probably she did not expect a miracle, still less wish Him to break up the party, or begin a discourse to distract attention from the want. The meaning simply is -They have no wine; what is to be done?"