The Emperor Antoninus asked R. Judah the Holy: "Friend, will you give me to eat of the flesh of the Leviathan in the world to come?"

Rabbi replied: "Yes."

Then the Emperor said: "But you would not let me eat of the paschal lamb."

Rabbi replied: "What am I to do? It is written in the Bible that 'no uncircumcised person shall eat thereof' '' (Ex. 12.48).

When the Emperor heard this, he submitted to circumcision, and then came back to Rabbi and said: "Now I am a Jew."

Rabbi said: "I must abide by your statement..."

R. Hezekiah and R. Abahu said: "When the proselytes will get together in the other world, the proselyte king Antoninus will occupy the highest place among them."