[Jim W N]

You’re confusing the work of the Holy Spirit to lead and guide, with doctrine which explicitly and exclusively comes from Scripture (2 Timothy 3:16).

In this case, the Catholic Church is espousing doctrine not in Scripture, something Jesus specifically condemned (”teaching for doctrines the commandments of men” Mark 7:7).

[marshmallow]

You’re confusing the work of the Holy Spirit to lead and guide, with doctrine which explicitly and exclusively comes from Scripture (2 Timothy 3:16).

Bass ackwards.

Before there was the New Testament, there was doctrine.