Conversion Scenario

I would use these three scriptures to compel him to come back to Christ. First, I would use Romans 10:2 and also verse 9 and 10. I would explain that salvation can only come by Christ Jesus, God's beloved son. Letting them know that most people that are of another religion may have a zeal of God but not according to knowledge. Some people being ignorant of God's righteousness and have gone on and established their own righteousness and have not submitted themselves unto the righteousness of God. Secondly, Ephesians 2:8-10, says For by Grace are ye saved through faith; and that not of yourselves: it is the gift of God. Explaining it is by God's grace not anyone's work lest any man should boast. that we are God's workmanship created in Christ Jesus unto good works which God hath before ordained that we should walk in them. My third scripture is John 14:6 letting him know that only through Christ can he be saved and have a life pleasing to God knowing that verse 6 says: Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me. This is stating God is the only true and living God and to get to him is through his only begotten son Jesus Christ.
The three spirits that I see that could be influencing this person, is the lying spirit, spirit of haughtiness(pride), and the spirit of error, also there is a spirit of Antichrist and the perverse spirit that could be an influence this is just to name a few.

Ms. Sandra this was a good approach. The approach you gave gives him the foundation on how to accept Christ as his Lord and savior. It reminds him that Jesus is the only. I saw more spirits at work as well like the spirit of perversion, and deception and rebellion.