He is Messiah, But...

A rabbi was teaching his class about the days following the arrival of the Messiah.

"At that time, the Messiah will slaughter the Shor Ha-Bor, the giant ox. The meat from this enormous beast will be enough to feed the entire world!" he said.

The students in the class sat wide eyed as the rabbi continued.

"And then, the Messiah will slay the Leviathan, the giant sea monster. The flesh from this creature will also be enough to feed the entire world."

"But rabbi," one student protested, "if the Shor Ha-Bor provides enough food for the entire world, then why will he slaughter the Leviathan?"

"Because," the rabbi answered, "there will inevitably be someone who will say, 'I'm not so sure about his kashrus...I'd better go with the fish.'"