[daniel1212]

As a matter of fact, I still had that tab my browser, so even though I used my own words (out my own mind!), I was not far from the annotation at source:

Gregory with Dove of Holy Spirit Dictating,

But which you provided in support of Catholic prelates and doctors of the Holy Church writing under Divine inspiration, besides Scripture, which without clarification is a distinction without a difference, and theologically would make God the author of such extraScriptural writings, and infallible papal statements, as He is of Scripture.

Care to explain the difference?

[annalex]

would make God the author of such extraScriptural writings, and infallible papal statements

Of course God is the author of all that is good. The canonicity of scripture means that this is a material (1) directly related to the historical events surrounding Jesus Christ; (2) written by an apostle or a person equally connected to the person of Christ; (3) is inerrant; (4) was used in the Holy Liturgy of the Early Church.