This person is in great danger. The world has taught it's religion to them and it will be difficult to remove that indoctrination. Definitely pray for this person and all those in the same 'boat'. A man once explained this issue this way.
There are four levels to belief in God. Level one is a believer, a follower of Jesus Christ and we can communicate with them naturally from mostly common framework. Level two is someone that is seeking truth, meaning of life; Is God real. That person can be reasoned with and can see the reasonableness of the Bible and it's message.
Level three isn't against the idea but isn't seeking truth.
Levels two and three can be reached with some effort and all are worth the effort. Even level four.
Level four? That's this person. Only God can soften their heart of stone. Prayer should be the primary focus to help this one. Prayer that God might soften their heart and lead the best messenger to them to get through their rebellious nature.
