Again, by the Holy Spirit.
It is different to understand in the soul from grasping with the spirit. Comparative religion is very soulish, while discernment is of the spirit.
CV: Romans 8:16; 2Cor6:14; Romans 10:6
A8: "And how do we determine who has the authentic, orthodox and authoritative interpretation of these passages?"
CV: "Again, by the Holy Spirit."
A8: And how do we determine who has the Spirit?
Do you notice your circular reasoning?
-A8
Well put.