Why Jesus Cleansed the Temple in John 2
Jesus went up to Jerusalem for Passover and found his Father's house given over to trade. When the leaders demanded a sign, he pointed to his own body as the temple that would be raised in three days.
Why Jesus Made Wine at Cana: John 2:1–11
John tells us why Jesus made wine at the wedding in Cana: the sign revealed his glory and his disciples believed in him. The abundance and quality of the wine show a generosity beyond what the feast required.