The problem is not the words they use, but the definitions behind those words. They use many of the same words that we do but they have different definitions of what those words mean.
Exactly. When speaking to anyone in any faith, ask "What do you mean by that?" It will open up a lot of info. They say they believe in Jesus Christ as their Savior and so much of it sounds good but when you ask them who Jesus is, you will get all sorts of answers but the one we need: Jesus Christ is fully God. So just because they say something that seems right, we MUST find out what they mean by that.