Epiphanius asked John, the bishop of Jerusalem to condemn Origen as a heretic. John refused on the grounds that a person could not be retroactively condemned as a heretic after the person had already died. In 393, a monk named Atarbius advanced a petition to have Origen and his writings to be censured. Tyrannius Rufinus, a priest at the monastery on the Mount of Olives who had been ordained by John of Jerusalem and was a longtime admirer of Origen, rejected the petition outright. Rufinus' close friend and associate Jerome, who had also studied Origen, however, came to agree with the petition. Around the same time, John Cassian, a Semipelagian monk, introduced Origen's teachings to the West.