Does it involve believing, following, trusting or maybe producing fruit? Well, here's what Scot McKnight posted on this topic:
First, if you ask Jesus in the first three Gospels, the Synoptics, I think you could answer the question with this: the one who follows Jesus. I could give fill a small truck with references from the Synoptics about this, but I’ll just give this one: Come follow Me, Jesus said to Peter and Andrew, James and John (Matt. 4:18-22). And then Luke 9:23 says this following is something done ever day.
Second, if you ask Jesus in the Gospel of John, you get this answer: Believe. The word “faith” or “believe” (these English words translate the noun and verb coming from the Greek root pist- in words like pistis and pisteuo). What does it mean to “believe” in John’s Gospel? Well, we can begin with John 1:12 and 3:16 (the famous one) and then jump around in John’s Gospel and we get ideas like abiding, following, trusting, and obeying.
Third, if you ask the apostle Paul — and why not just settle with something like Romans 10:9-10? — we get something like this: a Christian is someone who believes in salvation through Jesus’ life, death, and resurrection and who is filled with God’s Spirit.
Fourth, if you ask the apostle John — and read 1 John on this one because the answer jumps from the page — a Christian is someone who loves God and who loves others and who walks in the light of that love.
We could ask other NT writers, but I think you get what I’m getting at: Who is a Christian is answered by different writers with different language games. Do they point to one basic answer? Yes, I think so, but I don’t think it can be reduced to one of these words — like believe or follow or obey — but I also think we can reduce the whole to each of those words. I hope that makes sense. If we are careful, we can say the one who is a Christian is the one who follows Jesus or who believes in Jesus or who loves God, but when we do that we need to keep our eyes on the other writers. They’re in our NT to make sure we know there is more than one way to say important things.
Source: Jesus Creed
Tags: Christian, Christianity