The term ‘pope’ is from the Greek word ‘pappas’ which means ‘Father.’ In the first three centuries it was used of any bishop, and eventually the term was used for the Bishop of Alexandria, and finally by the sixth century it was used exclusively for the Bishop of Rome. Therefore it is an open question who was the first ‘pope’ as such.
The critics of the Catholic Church aren’t really worried about when the term ‘pope’ was first used. What they mean when they say that Leo the Great (440-461) was the first pope is that this is when the papacy began to assume worldly power. This is, therefore, simply a problem in definition of terms. By ‘pope’ the Evangelical means what I thought of as ‘pope’ after my Evangelical childhood. By ‘pope’ they mean ‘corrupt earthly ruler’. In that respect Leo the Great might be termed the ‘first pope’ because he was the one, (in the face of the disintegrating Roman Empire) who stepped up and got involved in temporal power without apology.
However, seeing the pope as merely a temporal ruler and disapproving
is to be too simplistic. Catholics understand the pope’s power to be spiritual. While certain popes did assume temporal power, they often did so reluctantly, and did not always wield that power in a corrupt way. Whether popes should have assumed worldly wealth and power is arguable, but at the heart of their ministry, like the Lord they served, they should have known that their kingdom was not of this world. Their rule was to be hierarchical and monarchical in the sense that they were serving the King of Kings and Lord of Lords. It was not first and foremost to be hierarchical and monarchical in the worldly sense.
The Protestant idea that the papacy was a fifth century invention relies on a false understanding of the papacy itself. After the establishment of the church at Constantine’s conversion the church hierarchy did indeed become more influential in the kingdoms of this world, but that is not the essence of the papacy. The essence of the papacy lies in Jesus’ ordination of Peter as his royal steward, and his commission to assume the role of Good Shepherd in Christ’s absence.
The idea, therefore, that Leo the Great was the first ‘pope’ is a red herring based on a misunderstanding of the pope’s true role.
Authority of the First Popes - Fr. Dwight Longenecker
The Anglicans coined the term "Roman Catholic" because they wanted to keep what little apostolicity they had, and still call themselves "catholic". "RCC", to designate all Catholics, pays no attention to the other 22+ rites. It's inaccurate. Professional liars like Matt Slick are too proud to be corrected. Use "CC" instead of "RCC". Please.