Water turned into wine at Cana
At a wedding in Cana of Galilee the wine ran out. Jesus had the servants fill six stone water jars, and the water became excellent wine: the first of his signs.
This beginning of his signs Jesus did in Cana of Galilee, and revealed his glory; and his disciples believed in him.
John 2:11 (World English Bible)
The jars, holding perhaps twenty to thirty gallons each, were for Jewish ceremonial washing. The master of the feast, not knowing where the wine came from, told the bridegroom he had saved the best until last. John calls it the beginning of the signs by which Jesus revealed his glory.
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Dating notes
Ussher: AD 30, before the Passover (John 2:12–13). The month shown is estimated from the order of events in Ussher's harmony, so that events of the same year appear in sequence.