It seems that there are many versions of Christianity these days. I don't mean different denominations, networks, or expressions of the Orthodox faith, but different messages of "Christianity And," where something else is added to Christianity taking away for the one and only gospel message. Most of these things are subtle because many of them are good things such as social justice, but when it becomes Christianity plus whatever other message as one message then it becomes an issue.
Adding another message to the gospel and masking them as one is a tactic of the enemy that trips up most Christians at some point. It is easy to wave our banner of whatever cause we stand for at a particular time or our favorite political party and as humans we easily mix these messages in with our faith, which causes an entirely different message to be communicated, "Christianity And."
In the satirical Christian apologetic novel Screwtape Letters there is one letter from the senior demon to the junior tempter that captures this very idea:
What we want, if men become Christians at all, is to keep them in the state of mind I call 'Christianity And'. You know-Christianity and the Crisis, Christianity and the New Psychology, Christianity and the New Order, Christianity and Faith Healing, Christianity and Physical Research, Christianity and Vegetarianism, Christianity and Spelling Reform. If they must be Christians, let them at least be Christians with a difference. Substitute for the faith itself some Fashion with a Christian colouring.
"But even if we or an angel from heaven should preach to you a gospel contrary to the one we preached to you, let him be accursed. As we have said before, so now I say again: if anyone is preaching to you a gospel contrary to the one you received, let him be accursed." -Galatians 1:8-9