READING I: Wisdom 7:22b-8:1 RESPONSORIAL: Psalms 119:89, 90, 91, 130, 135, 175
GOSPEL: Luke 17:20-25
Only two popes have been given the title "Great," Leo and Gregory. Leo was born just before 400AD and became pope in 440. Legend has it that when Attila the Hun was marching on a weakened Rome, Leo went out to meet him and persuaded him to leave the city alone.
However, what was really important about Leo was the way in which he established the primacy of Rome as the authority and head of the church. At the Council of Chalcedon, which is still one of the most important councils of all time, Leo laid down, in his famous "Tome" (letter) the definitive definition of Jesus and how he was both God and man. This teaching still marks the boundary of theological thinking today. Leo was a great administrator and teacher who laid down the structure of the church as we know it today.