Part 1
Where do you get the idea that the church is infallible? Jesus never made such a promise.
I will respond to each of your comments separately.
The phrase papal infallibility occurs in Scripture as often as the term Trinity: not once. However, it does not follow from this that biblical proof is lacking
Rather than spend a lot of time redeveloping a case for Church Authority I am going to borrow from various sources:
According to Catholic theology, there are several concepts important to the understanding of infallible, divine revelation: Sacred Scripture, Sacred Tradition, and the Sacred Magisterium. The infallible teachings of the pope are part of the Sacred Magisterium, which also consists of ecumenical councils and the “ordinary and universal magisterium”. In Catholic theology, papal infallibility is one of the channels of the infallibility of the Church. The infallible teachings of the pope must be based on, or at least not contradict, Sacred Tradition or Sacred Scripture.
You are a person who we Catholics see as only possessing a fractional truth. So I understand that of the above you will only accept Sacred Scripture. So I will offer you evidence of that from scripture alone. To wit:
John 1:42, Mark 3:16 ("And to Simon he gave the name “Peter”, “Cephas”, or “Rock”)
Matthew 16:18 (“thou art Peter; and upon this rock I will build my church”; cf. Matthew 7:24-28, (the house built on rock)
John 21:15-17 (“Feed my lambs.”/“Feed my sheep.”) (stated three times)
Luke 10:16 (“He that heareth you, heareth me; and he that despiseth you, despiseth me; and he that despiseth me, despiseth him that sent me.”)
Luke 22:31-32 (“confirm thy brethren”)
Acts 15:28 (“For it hath seemed good to the Holy Ghost and to us, …”) (“the Apostles speak with voice of Holy Ghost”)
Matthew 10:2 (“And the names of the twelve apostles are these: The first, Simon who is called Peter,…”) (Peter is first.)
Matthew 16:19 (“whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven”) (Also used to defend the sacrament of Confession)
There are many other indications in Scripture that Peter was given a primary role with respect to the other Apostles: Mark 5:37, Matthew 17:1, Matthew 26:37, Luke 5:3, Matthew 17:27, Luke
22:32, Luke 24:34, and 1 Corinthians 15:5, Matthew 28:18-20, John 14, 15, and 16, I Timothy 3:14-15.
You might want to go back and re-examine why you think scripture is infallible. If all these things were done without acts and Jesus had made all his comments as a young boy for example would you believe them? No - probably not since I think your faith derives from 2nd hand accounts of Jesus’ works and acts of wonders. My own faith first derives from the lives of the early saints and apostles not directly from Jesus’ works. I know in my heart that these many early Christian Martyrs all believed with all their hearts in what they saw and heard since they were willing to die for what the believed in. Thus my faith derives directly from The Living Church - which is the mystical body of Christ.
Given that it took Jesus over 30 years from the time of His birth to come into an understanding of who He was (especially when He spent 40 days in the wilderness after His baptism) I accept the spiritual truth that God reveals to us who and what we are OVER TIME. Thus God also revealed and formed His Church over time.
There are other clear indications as well in the Traditions and early Church writings that an understanding among the Apostles was written down in what became the Scriptures, and rapidly became the living custom of the Church. But I won’t bother to expose these here since you will not accept anything but the historical scripture that The Church assembled into its cannon.
More here:
Infallibility
More here:
How to Argue for Papal Infallibility
All the above is completely unassailable since NO OTHER PERSON OR ENTITY on the planet can argue to defeat The Church’s claim in a way that they can usurp that authority to give it to themselves as each and every single Protestant attempts to do.
Now That I have answered your question I have one for you.
Where DO YOU get your authority to challenge The Church and replace it with yourself as a Church of One?
James