I have been studying 1 John and I came to this passage: "Who is a liar but he who denies that Jesus is the Christ? He is antichrist who denies the Father and the Son. Whoever denies the Son does not have the Father either; he who acknowledges the Son has the Father also." 1 John 2:22-23. I read this to mean that anyone who denies Christ (His deity?) is not saved. I grew up in a "Christian" home, went to church, Sunday School, Christian school, made the decision to trust Christ when I was 13. My dad taught me the fundamentals of Christian doctrine. Now, my dad is involved in the Hebrew Roots cult, and he denies that Jesus is God. He says that Jesus is Messiah, but just a special man that God used to save mankind. He denies the doctrine of the Trinity, believes that the "word of God" is infallible but that the Bible is not, does not accept any of the letters of Paul, and has even doubted my salvation because I do not believe the way he does.
In verse 19, John says, "They went out from us, but they were not of us; for if they had been of us, they would have continued with us; but they went out that they might be made manifest, that none of them were of us." Could this mean that my dad has never been saved? This tears my heart. Instead of my entire family being saved as I have always thought, now it's just my mom and I, and my mom is following a lot of the Emergent teachings. And if my dad is not saved, how do I present salvation to him? He already has all the head knowledge of the Bible. He believes he is saved. Any insights would be helpful.