Those who were never really among us...like the five unwise virgins who did not have oil in their lamps (the Holy Spirit). For without the Spirit of God in you you are NOT His child (John 3:3-8; Acts 2:38). If you are really a Christian you can never reject it any more than you can reject who you are now...you can kill yourself but it was still you who did it to you...I know God I could never deny or reject Him unless I was beguiled by the devil and insist upon being my own god...but I would still know Christ was the real deal I would just hate Him and refuse to follow Him and thus have chosen gehenna...people who say they were really Christians and now they deny it were never real Christians (because you are not the old you any longer a new nature has been born and is growing up inside your body...there is a new you in there after the order of the Second Adam, the old self is being slowly shed because it is judged and dead...the new self is a spirit baby child of YHVH who can never die...he/she KNOWS her/his parent...is your mom real? Does she exist? Can you ever deny her? Oh I suppose you can reject her if she is evil or you are but it changes nothing....to deny God is prideful rebellion or delusion....your way or Yahweh...you choose (Acts 2:38; Romans 6:23)
There are many times more people in the world practicing Christianity than Buddhism.
Christianity means religions following the teachings of Jesus Christ. There are many types of Christianity.
to convert many people to Christianity
Christianity is relevant because it is the religion of many people in the world. Since Christianity is a major religion, many people base their decision on Christian beliefs.
2.1 billion people
there are a lot of people who is now joined by Christianity. I would say about 200,000,000,000,001
About 2.6 Billion people worship Christianity.
You cannot necessarily die due to Christianity.
lots
The bible following born-again Christians which includes many denominations; the practicing Catholics who are not usually born-again; and third, people who claim to be Christian but don't behave like they are Christian.
There are followers of Christianity in every country in the world. Over 2 Billion people are Christian, about 33% of the worlds population.
Many people have never been exposed to Christianity. There are also many other religions in the world.