Miracle of Qana

Apparently because it was commissioned for a Benedictine Monastery that observed the rule of silence, Veronese's Wedding at Cana, while offering the liveliest depiction of a social event rich in closely observed detail, choked with small intimate exchanges and interactions among more than 130 figures, does not in fact offer a single open mouth, the slightest visible intimation of actual speaking.

That's something of a miracle in itself, sort of not like Twitter.