Henry said:
1st Corinthians 12:3 says, "...no one can say “Jesus is Lord” except in the Holy Spirit."
In 1st John 4, we read in verses 2-3:
"By this you know the Spirit of God: Every Spirit that confesses that Jesus Christ has come in the flesh is of God, and every spirit that does not confess that Jesus Christ has come in the flesh is not of God."
In vs. 6 of that same chapter, we read "We are of God. He who knows God hears us; he who is not of God does not hear us. By this we know the spirit if truth and the spirit of error."
I know that I'm jumping in here late, but I just have a quick comment.
1. There is a point when versus are taken too literaly. Such as 1 Cor 12:3. We see here more of an example of what a Christian should be professing I believe rather then a black and white issue of "whom ever proclaims Jesus as Lord with their lips is of God."
Because we all know that not all who proclaim Jesus as Lord with their lips is truly saved, right?
We also know that there are false prophets in the church today that know the scriptures very well, but they are reading them not by the will of the Spirit but of their own will for the sole purpose of bending them to their own desires. This is nothing new and has been a reality of the church from the begining.
What this person is teaching is wrong and it is not orthodox. This person should be rebuked and told that his interpretation of the Holy Word of God is in serious error.
You have done what is right. You have showed him he is in error. If he continues to ask for your guidance, then great, continue to disciple him. If not, then I would pray for him and ask God to forgive him.
Y.B.I.C,
Dave.