The problem with “the Bible as the only Authority” is that even the Bible disclaims this.

(1) Primacy of Tradition

⁃1 Corinthians 11:2 “maintain the traditions even as I have delivered them to you.”

⁃2 Thessalonians 2:15 “hold to the traditions you were taught . . . by word of mouth or by letter.”

⁃2 Thessalonians 3:6 (Shun those who do not follow the Tradition you received).

⁃Matthew 28:20 “teaching them to observe all that I have commanded you”

⁃John 21:25 “other things . . . Jesus did . . . the world itself could not contain the books that would be written.”

⁃John 20:30 “Now Jesus did many other signs in the presence of [his] disciples that are not written in this book.”

⁃Acts 20:35 (A saying of IHS not found in the Gospels).

⁃2 Peter 1:20 “no prophecy of Scripture is a matter of one’s own interpretation.”

⁃2 Peter 3:16 “some things in them hard to understand, which the ignorant and unstable twist to their own destruction, as they do the other Scriptures.”

See also

⁃Acts 8:31

(2) Authority of the Church

⁃Acts 9:31 The church throughout all Judea, Galilee, and Samaria was at peace. It was being built up and walked in the fear of the Lord, and with the consolation of the holy Spirit it grew in numbers (Ekklesia Kata Holos).

⁃1 Timothy 3:15 “Church of the Living God, the pillar and bulwark of the Truth.”

⁃Matt 10:40 “who receives you received me, and receives Him who sent me.”

⁃Matt 16:18-19 (Jesus gives Peter keys to the Kingdom)

⁃Matt 18:17 “if he refuses to listen to them let him be as a . . . tax collector”

⁃Matt 18:18-20 (binding and loosing; authority given to Apostles).

⁃Luke 10:16 “who hears you hears Me. . . who rejects you rejects Me (and) . . . Him who sent me”

⁃John 20:23 (Jesus gives Apostles the authority to forgive sins)

⁃2 Thessalonians 3:14-15 “if anyone refuses to obey what we say . . . warn him as a brother”

(3) Church Infallibility in Faith & Morals

⁃John 16:13 “the Spirit of truth . . . will guide you into all the truth.”

⁃Isaiah 59:21 “Covenant with them . . . my words shall not depart out of your mouth.”

⁃Matthew 16:18 “my Church . . . the gates of Hades shall not prevail against it.”

⁃Matthew 18:17 “if he refuses to listen tell it to the Church.”

⁃Matthew 28:20 “teaching them to observe all that I have commanded you.”

⁃Luke 10:16 “hears you hears me (and) rejects you rejects me”

⁃Luke 22:32 “I have prayed . . . that your Faith may not fail . . . strengthen your brethren”

⁃John 14:16 “He will give you another counselor to be with you forever.”

⁃John 14:26 “the Holy Spirit . . . will reach you all things, and bring to your remembrance all I have said to you.”

⁃Acts 15:28 (Identifies Apostles’ decision as identical to Holy Spirit’s decision)

⁃Ephesians 3:10 “that through the Church the manifold wisdom of God might be known.”

⁃1 Timothy 3:14-15 (Church is the pillar and foundation of truth)

⁃1 John 2:27 God’s anointing “abides in you . . . teaches you about everything.”
chris griffin
The bible is infallible, tradition is not infallible.
James Manning
If you mean pious beliefs, colloquially called "little-t tradition", then yes. If Tradition were not infallible, we would not be bound to believe in the Immaculate Conception, for example. Yet we are.
Of course, if you're not a Catholic, I don't expect you to get that point.More
If you mean pious beliefs, colloquially called "little-t tradition", then yes. If Tradition were not infallible, we would not be bound to believe in the Immaculate Conception, for example. Yet we are.

Of course, if you're not a Catholic, I don't expect you to get that point.
James Manning
My best friend from childhood is an Evangelical, and he was instrumental in my becoming Catholic (ironically). In our discussions, I've asked him if our Lord gave us a Church or a book. He never likes it when I bring that one up.