Caesar once said to Rabbi Yoshua ben Chananja, "This God of yours is
compared to a lion, as it is written (Amos iii. 8), 'The lion hath
roared, who will not fear?' Wherein consists his excellency? A horseman
kills a lion." The Rabbi replied, "He is not compared to an ordinary
lion, but to a lion of the forest Ilaei." "Show me that lion at once,"
said the Emperor. "But thou canst not behold him," said the Rabbi. Still
the Emperor insisted on seeing the lion; so the Rabbi prayed to God to
help him in his perplexity. His prayer was heard; the lion came forth
from his lair and roared, upon which, though it was four hundred miles
away, all the walls of Rome trembled and fell to the ground. Approaching
three hundred miles nearer, he roared again, and this time the teeth of
the people dropped out of their mouths and the Emperor fell from his
throne quaking. "Alas! Rabbi, pray to thy God that He order the lion
back to his abode in the forest."
THE TALMUD, _Chullin_, fol. 59, col. 2.