Is it someone who has been “born again?” What does that mean?
Must you believe in the inerrancy of the Bible? Does inerrancy require the seven days of Genesis, the serpent in the garden, Noah’s Ark, Jonah’s whale, the tribulation of Job, and an immaculate conception? Must the earth be around 5000 years old?
If not literal inerrancy, must you believe that the Bible was divinely inspired?
What does it mean to take Jesus Christ as your Lord and Savior? Must you walk to the front of a room, declare, and have hands laid on you? Can you do it on your deathbed or death row?
Must you be baptized? What if you’ve never had communion?
Is it someone to whom God speaks? What does it feel like to have God speak to you?
Must you believe in Satan as a being? What about hell as a place? What about heaven?
Is it someone who attends worship services every Sunday? What about Wednesday night services or Saturday mass? Must you receive ashes on your forehead on the first Wednesday of Lent?
Must you subscribe to a particular political view? Were any Nazi’s Christians? What about slave owners? Murderers? Tax evaders?
What if you’ve never donated a dollar to a church, another person, or an organization? What if you’ve never volunteered for a soup kitchen? What if you’ve never stopped to help someone else on the side of the road?
Who is a Christian?
