This thread has gone far beyond simply discussing John of the Cross. You are building doctrine out of mysticism, spiritual stages, private illumination, and the experiences of men, then trying to make Scripture fit that system. That is backwards. Scripture is the standard. Everything else must be judged by it.
The claim that some Christians reach a higher state where they no longer sin is not what John teaches. He says, “If we say that we have no sin, we deceive ourselves” (1 John 1:8), and then tells believers, “if any man sin, we have an advocate with the Father, Jesus Christ the righteous” (1 John 2:1). You cannot use 1 John 3 to erase what John already said. That is not interpreting Scripture. That is forcing a conclusion onto it.
The same problem appears with sanctification. Paul could say, “ye are sanctified” (1 Corinthians 6:11), and also say believers are being changed “from glory to glory” (2 Corinthians 3:18). Scripture teaches that believers are set apart in Christ and continue to grow in holiness. Denying progressive growth because you have adopted a mystical “higher stage” is not biblical.
And the idea that someone reaches a level where the Holy Spirit becomes his teacher in such a way that he no longer needs his understanding tested is especially dangerous. The Holy Spirit inspired Scripture, and He never leads anyone beyond submission to it. The Bereans searched the Scriptures to test what they were taught (Acts 17:11), and Paul said, “Prove all things; hold fast that which is good” (1 Thessalonians 5:21). No mystical experience, inner voice, spiritual director, saint, church father, or private interpretation gets a pass from that command.
Pursue holiness. Put sin to death. Obey Christ. But stop calling a mystical system biblical when Scripture does not teach it. Sinless perfection in this life is not established by the text, private illumination is not a higher authority than Scripture, and spiritual experiences do not create doctrine.
If this teaching is true, prove it from Scripture in context. If you cannot, then stop presenting it as something the Bible teaches.