I try some times to step back from “discernment” ministries and from reformed theology, from emergent web sites, and the like to try to figure this out. What exactly is happening in the church? Is it like the New Testament people who were splintered segments of the Jewish population? You had Pharisees, Saducees, Samaritans, Nazarenes, and the many other factions and groups within the Jewish faith. They bickered over this part or that part of scripture. Is this the state of many who claim to be Christians today? I do not think this is completely true of the Church. I believe there are Christians who are sinners just like everyone, but who are saved and are part of the Body with Christ as the head. Now, there will still be some things unclear, some things unknown to this group. But, what of all this error that is so destructive? Are these people part of the Body too? I believe it’s possible some of them are, and yet are deceived. There are brothers and sisters in Christ who are tied down when they need not be. Am I sure about this? No. However, I was in a church I feel was off track and yet I believe I was saved then as now. Even when I didn’t see the error, I believe I was still saved. Kind of like a child, who cannot see the adult that is bad. The child is not necessarily responsible for their lack of insight although they will suffer from the adult who is doing bad things somewhere.
I am just still trying to figure out the truth of where the true Church, true Body is and where the lines are exactly. It’s hard because we are told there will be wolves among the sheep, weeds with the good plants. So, it’s quite possible that the false church sits inside the true Church…and it seems will later be seperated and judged. Obviously, there are churches that are not at all part of the Body.
Ah, if only I could always manage to see clearly. I like to know things. I guess I just have to be aware that I am saved only by the grace of God because I know on my own I would be deceived so easily. I am nothing, but thanks to Jesus I am saved.
I am a C...I am a CH...I am a CHRISTIAN 
It’s always heartening to me to see people wrestle with questions like these. I think it’s healthy to ask questions and to struggle with one’s theological stance. It’s important to know where one stands.
You mention that you are secure in your salvation even when you are involved in churches that might be “off track” in terms of theology, and I think you’re right. It’s not theology that saves us – it’s Jesus.
You also talk about drawing lines regarding who is part of the true church and who is not. It’s a good exercise when we start drawing those lines and saying “the good ones are over here and the others are over there” to ask ourselves where Jesus would be hanging out.
Blessings in your wrestlings!
R.