The criteria for discernment were formulated by St. Vincent of Lerins. The doctrine is valid if it has been believed historically by nearly all nearly everywhere, and always. If someone reaches interpretations that are widely off the mark in comparisons to what the Church has always taught, then he is not lead by the Holy Spirit, and if he feels strongly that there is inspiration in his views, then it is demonic. Your quotes do not show otherwise. Are all doctors?
The criteria for discernment were formulated by St. Vincent of Lerins.
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No, by Paul in I Cor 12-14.
And the fruits of Holy Spirit are also wise markers as Alamo-Girl is often want to articulate so well.