2:1 On the third day [possibly: since the event in Jn. 1:43-51 (call of Philip and Nathanael)] a wedding [a major community event lasting several days; host expected to have sufficient food and wine for guests; perhaps wedding of a friend or relative] took place at Cana [located a few miles north of Nazareth; the home of Nathanael (Jn. 21:2)] in Galilee. Jesus’ mother [perhaps Mary’s name omitted to place emphasis on Jesus; Joseph is not mentioned (possibly he had already died)] was there [probably had been there for a while; possibly had some responsibilities (she took initiative to deal with shortage of wine; she gave orders to servants)],
2:2 and Jesus and his disciples [those He had called previously to follow Him (cf. Jn. 1)] had also been invited [to call] to the wedding [Jesus participated in normal activities of community life; Jesus’ presence implies His blessing on marriage].
2:3 When the wine [for the Jews, wine represented life and abundance] was gone [to run short, to fail], Jesus’ mother said [an impatient urging] to him [perhaps because she believed Jesus could resolve the problem], “They have no more wine [possible indication that wedding feast was nearing its end; Mary looked to Jesus to help alleviate the problem (perhaps she expected her oldest son to obtain more wine locally)].”
2:4 “Dear woman [a form of address; not disrespectful; cf. Jn. 4:21; 19:26], why do you involve me [Jesus’ actions would be determined by Him, not by Mary or anyone else]?” Jesus replied. “My time [a reference to Jesus’ death, burial, and resurrection (cf. Jn. 2:4; 7:30; 8:20; 12:23,27; 13:1; 17:1)] has not yet come [possibly, “I shall choose the appropriate moment,” referring to His intention to provide the needed wine (Rienecker/Rogers)].”
2:5 His mother said [Mary’s words indicate that she did not take Jesus’ reply to mean His refusal to help] to the servants, “Do whatever [indicates Mary was confident Jesus would do something] he [Jesus] tells you.”
2:6 Nearby stood six [number representing imperfection] stone [stone not subject to ritual contamination or impurities as were clay containers (cf. Lev. 6:28; 11:33; 15:12)] water jars, the kind used by the Jews for ceremonial washing [washing hands in a special way before a meal; ritual (not just hygienic) purification (Mk. 7:1-4)], each holding [to have room for, to contain; does not necessarily indicate what they actually contained at the time] from twenty to thirty gallons.
2:7 Jesus [He did what He could to help] said to the servants, “Fill [“to fill full”] the jars with water [apparently from a well]”; so they filled them to the brim [no room left for adding anything else to the jars].
2:8 Then he told them, “Now draw some out [of the stone water jars] and take it to the master [superintendent of a banquet whose duty it was to arrange tables and food] of the banquet.” They did so,
2:9 and the master of the banquet tasted the water that had been turned into wine. He did not realize where it had come from, though the servants who had drawn the water knew. Then he called the bridegroom aside
2:10 and said, “Everyone brings out the choice wine first and then the cheaper [lesser, inferior] wine after the guests have had too much to drink [ability to distinguish better wine somewhat impaired after much drink; does not necessarily imply that the guests were already drunk]; but you have saved [to guard, to keep back, to preserve] the best till now.”
2:11 This, the first [beginning] of his miraculous signs [a phenomenon that points to something beyond itself; an act or miracle with a meaning designed to lead to belief in Jesus as the Messiah, the Son of God (Rienecker/Rogers)], Jesus performed at Cana in Galilee. [in addition to relieving an embarrassing situation for the host of the wedding, Jesus’ miracle resulted in…]  He thus revealed [to manifest, to make visible, to make clear; His Messianic glory was manifested in the abundance of wine which was the OT figure for joy of the final days (Rienecker/Rogers)] his glory [possibly: manifested His character], and  his disciples put their faith in [to believe in, to trust in; however, not everyone who saw Jesus’ miracles believed] him.