Jesus didn’t promise to build His church on Peter. He promised to build His church on the revelation of truth by the Father which is in heaven.
bibleapologist, your interpretation is too narrow.
the parrallelism between ‘thou art rock’ and ‘on this rock i will build my church’ shows the 2nd rock can only be the same as the first. also, name changes held great weight in eastern cultures. abram (father) to abraham (father of nations) is prime example. this name change indicate something important is going on.
plus, caeserea philippi is the site of the upper sources of the jordan–a mountain–and a temple dedicated to pan, the gentile god of springs and shepards. then later was dedicated by king herod to caesar agustus–the palatine lord.
in this historical context, it can be seen that peter was to be the rock and leader of the church that flows water of truth and life to the gentile and jewish world.
finally, the gospel of matt. was written for the jews. every jew who read matt. 16 would recognize the appointment of peter with isaiah 22, were the same words were employed–keys of “binding and loosing”–which represent legislative and judical powers of the rabinic office. the passage places peter as the royal steward of Jesus’ new kingdom. (stephen k. ray
upon this rock 1999).
we can go on and on about papal primacy. but i would say that your fundametnal sola scriptura position is untenable. that scriptures are self testifing and at best we have a fallible collection of infallible scriptures (the only sure rule for inspiration is weather or not it’s apostolic in origin–the only way we can know this is through apostolic succesion).
nowhere in the bible does it say explicitly or implicitly that it alone is authoritative. how could it be? the printing press wasn’t invented until the 16th century. plus this would require every individual to be literate and biblical scholars well versed in ancient greek and hebrew.
ultimately, we know Jesus ordained 12 men to be his apostles and didn’t just leave us a book. we are a religion of the Word, not the book. God revealed himself fully in the Word of God–everything Jesus said and did, his whole lifetime, so that no more revelation is necissary. this Word was received fully by the apostles with the aid of the Holy Spirit and fully transmitted to their successors, the bishops, and through them to all generations until the end of the world.
this deposit of faith is entrusted to the whole church in two ways: the living transmission of the word of God, and sacred scripture. *thanks to its supernatural sense of faith the people of God as a whole, assisted by the Holy Spirit and guided by the Magesterium (apostolic successors) of the whole church, never ceases to welcome, penetrate more deeply and to live more fully the gift of divine revelation *(compendium catechism of catholic church).