If I knew, I would have told you…but I trust the CC teaches according to what was handed down from Christ to the Apostles to us today.
calledtocommunion.com/2009/07/ecclesial-deism/
Aquinas believed that faith in Christ necessarily involves trusting the Church, because Christ cannot fail to guide and protect the development of His Church.
I came to see that faith in Christ is not something to be exercised invisibly, from my heart directly to Christ’s throne, as though Christ had not appointed an enduring line of shepherds. Inward faith was to be exercised outwardly, by trusting Christ through those shepherds Christ sent and established. Jesus had said, “The one who listens to you listens to Me, and the one who rejects you rejects Me; and he who rejects Me rejects the One who sent Me.”29
This is the sacramental conception of faith, not simply belief that, but belief through. This is the sacramental conception of the Church, the basis for the priest speaking in persona Christi.
But upon coming to understand that Christ founded a visible hierarchically organized Body of which He is the Head and which He promised to preserve, I came to see that the way to trust Christ is to trust His Church of which He is the Head, just as the early Christians trusted Christ precisely by trusting the teaching of the Apostles. Trusting the Apostles did not subtract from (or compete with) their trust in Christ. On the contrary, when Jesus tells the Apostle Thomas, “Blessed are they who did not see, and yet believed,”30 He implies that greater faith is required and shown in those who trust in Christ not by seeing Him, but by believing the testimony of the Apostles. Jesus refers to this way of believing when He prays, “I do not ask in behalf of these alone, but for those also who believe in Me through their word.”*