Above all else, however, remember that none of us can…

Above all else, however, remember that none of us can explain by ourselves a prophecy in the Scriptures. For no prophetic message ever came just from the human will, but people were under the control of the Holy Spirit as they spoke the message that came from God.
2 Peter 1:20-21

If there’s a variety of doctrines can we conclude beyond doubt that they lack the holy Spirit?

God is not the author of confusion but Man is 1 Corinthians 14:33!