There seems to be multiple definitions of the word Christian. It is used in a variety of ways. So, I have found it helpful for myself to define the word and even group those who call themselves Christians into these categories.
Census Christians are people, who, if asked about their religion, would say “Christian.” This designation might not relate at all to anything that these people believe or practice. Often, this is a cultural answer. If asked about their religion in certain geographic areas, for example, many people might answer, “Of course I’m a Christian. Isn’t everybody?” These people are “census Christians.” On a census, these people would check the “Christian” box. What that designation actually means is anybody’s guess.
These people are also known as Cultural Christians as their lives are identical to their neighbours — those who are not believers. Being a Christian has not altered their values, morals, ethics, priorities, or lifestyle.
Member Christians claim some sort of identification with a particular Christian institution or organization. Again, this does not mean that these people necessarily participate or even that they show up at their church. These people simply have some sort of personal connection with a church and they identify themselves with that church. They might say, “I am Catholic,” or “I am Baptist,” or “I am Methodist.”
Practicing Christians actually participate in the life of a church. They typically attend worship services. In some fashion, these people are involved in the forms and rituals of the faith. Often their connection with the church is limited to weddings, baptisms, and funerals. They usually attend at Easter and Christmas.
Believers (or Committed Believers) are people for whom the Christian faith is central, life-changing, and life-shaping. These Christians strive to live out their faith and communicate their faith to others. To use the language of the evangelical world, these people have a personal relationship with Jesus. Often they will use the language of John 3 and talk about being “born again.” They have a personal and intimate relationship with Jesus (John 17:3)
Hidden Christians are people who believe secretly. Fearful of persecution, these people keep their faith to themselves. In some settings, these believers might keep their faith secret from government officials and employers. In other settings, they might keep their faith secret even from family members and friends. These believers might not ever experience specific acts of outward persecution, but the fear of persecution has caused their faith to be completely inward. For the most part, their faith, though real, is hidden. In most cases, they have not “joined” a church, through this might be an artificial measurement since, in many settings, there is no official institutional church to join.
When I use the word Christian I am referring to and speaking of people who know who Jesus is and who have had a personal encounter with Him and are thus born again. I am referring to people for who knowing Jesus has transformed their life. People who are a journey as they obey the will of the Lord. They are followers of Jesus, His disciples. So they wold fit into the last two categories — Believers (or Committed Believers) and Hidden Christians.
For me this means I see that many who call themselves Christians are not and so are still in need of being born again. Just because someone calls themselves a Christian does not make them a Christian. Just because they go to church regularly also does not make them a Christian. Having a life-changing encounter with the love of God as found in Jesus Christ — being born again — is what determines if you are a true Christian and follower (disciple) of Jesus. So, I can honestly say that I view many who call themselves Christians as people who need to be evangelized. For truly they are religious and not righteous.
And, even in the born again church I believe well over 50% of those who are members and attending are not truly born again. They said a Sinner’s Prayer and were told that they were now born again. That’s a lie. To be born again one must experience the conviction of the Holy Spirit, respond with godly sorrow, and repentance. Then pray and ask the Lord to forgive you and become Lord in your life. (See: 2 Corinthians 7:8-10) To be born again is more than having a head knowledge and understanding of who Jesus is and what He accomplished on the Cross of Good Friday and then praying a Sinner’s Prayer. Head knowledge is not enough – you need to encounter the truth and have it change your heart.
So, Christians are those who have heard the Gospel of the Kingdom (Matthew 24:14) and responded with godly sorrow and repentance are true believers. If you have only heard the gospel of salvation and not experienced conviction and godly sorrow with repentance then you know the truth but it has yet to set you free. Head knowledge is not enough. The Bible says that even the demons know who Jesus is and what He did and they are not saved and are not going to heaven (James 2:19).
The “Gospel of Salvation” is a man-made belief. The Gospel of the Kingdom is the only true Gospel and it will set you free and through it you become a true believer, a Christian.