It simply does not work to bring everything down to the lowest common denominator and say that the only criteria for being a Christian is that we all believe that Jesus is the Son of God. Or some will even go so far as to say that, if even this is not true of everyone, at least everyone believes in a god, and that's enough - it doesn't matter that some do not even believe in the Christian God. It is fine for Christians and Moslems and Jews and pagans all to join together; the important thing is simply that we all love each other. The differences do not matter; only the similarities. So the ecumenists argue. But this is not true! This is not the apostolic teaching. This is not the true faith. This is ecumenism! The apostles taught us to be of one mind and one body by believing, speaking, and doing all the same things that have been handed down to us ever since the first followers of Christ. We must be completely united in all our beliefs, being perfectly joined together in the same mind and judgement. To reduce the requirements for being a Christian to a mere statement of faith in a god, thus minimalizing Christianity, severs this unity that we are commanded to abide by.