Ovid,
Metamorphoses
(1921)
“ But Pentheus stood fixed in his purpose. He no longer sent messengers, but went himself to where Cithaeron, the chosen seat for the god's sacred rites, was resounding with songs and the shrill cries of worshippers. As a spirited horse snorts when the brazen trumpet with tuneful voice sounds out the battle and his eagerness for the fray waxes hot, so did the air, pulsing with the long-drawn cries, stir Pentheus, and the wild uproar in his ears heated his wrath white-hot. ”
