First Corinthians 1:10-13, 17
Brothers, I urge you, in the name of our Lord Jesus Christ, not to have factions among yourselves but all to be in agreement in what you profess; so that you are perfectly united in your beliefs and judgements.
From what Chloe's people have been telling me about you, brothers, it is clear that there are serious differences among you.
What I mean is this: every one of you is declaring, 'I belong to Paul,' or 'I belong to Apollos,' or 'I belong to Cephas,' or 'I belong to Christ.'
Has Christ been split up? Was it Paul that was crucified for you, or was it in Paul's name that you were baptised?
After all, Christ sent me not to baptise, but to preach the gospel; and not by means of wisdom of language, wise words which would make the cross of Christ pointless.
These are Paul's words in his first letter to the Corinthians. It seems that even then there were arguments and factions and divisions as to what, or whom, to believe and to follow.
Paul makes it clear. "Don't follow me or anyone else. Follow Christ."
And now, 2000 years later we are still arguing as to which Church is the true and genuine one. The Catholics believe that they are the true Church because it was established by Christ through Peter. As a Catholic, I raise my eyebrows at some (many) of the Church's teachings, dogmas and beliefs. I once wrote to a priest that the Catholic Church portrays itself as superior and aloof from other Churches. He proved the point by ignoring me.
At a time when the world is becoming more secular and materialistic; at a time when people seem to have stopped believing in eternity and are only focused on the here and now; is it not time that we "Christians" present a united front and behave as Christ would want us to.
We Christians sometimes/often sully His name by our behaviour.