With apparent strong conviction of the importance of the Bishop of Rome in the Church, and of the Church as the ongoing sign of Christ’s presence in the world, Leo the Great displayed endless dedication as pope. Elected in 440, he worked tirelessly as “Peter’s successor,” guiding his fellow bishops as “equals in the episcopacy and infirmities.”
Leo is known as one of the best administrative popes of the ancient Church. His work branched into four main areas, indicative of his notion of the pope’s total responsibility for the flock of Christ. He worked at length to control the heresies of Pelagianism (overemphasizing human freedom), Manichaeism (seeing everything material as evil) and others, placing demands on their followers so as to secure true Christian beliefs.
A second major area of his concern was doctrinal controversy in the Church in the East, to which he responded with a classic letter setting down the Church’s teaching on the two natures of Christ. With strong faith, he also led the defense of Rome against barbarian attack, taking the role of peacemaker.Saint of the Day