Hi Angela: I realize that if we are truly led by the Spirit then we will never be led wrong because God does not make mistakes. However I have known many Christians( including myself) who thought they were being led by the Spirit but obviously were not. The problem is, how do WE KNOW that we are led by the Spirit apart from clear in context scripture? I have known so many Christians that honestly believed that the Spirit was leading them when it became apparent later that they were not following the Spirit of God.
As I said, we have to KNOW the voice of God! That means prayer, meditation and listening! I also wonder what kind of error you are describing. Is it theological? Because, theology, although I love it, does not determine our relationship with Christ. Is it personal? Well, I have had God speak to me in a booming voice when he saved me. Well, it was really a small still voice, but it was so powerful and true, there was no denying it. When God called me to seminary the first time, I knew it was him. But I disobeyed. So, that was not the fault of the Spirit, but mine. So is the error one of disobedience?
Or is it for a direction in life? I think sometimes God gives us smaller clues, and we have to put them together. But he still doesn't lead us astray. I think we lead ourselves astray!
If it is how to interpret Scripture, that is a learning and growing process. Sometimes we grab a hold of something, because it "feels" right, but in fact, God said no such thing. Sometimes we let our own viewpoints and opinions interfere with actually reading the Bible and following it. Another thing is too many people watch internet preachers and read their books, and think God has spoken to them. Sadly, he often hasn't. That is why we really have to have a close walk with Jesus, and he will lead and teach us. Then, when some new idea, concept or outright fantasy comes along, some people get swept into it, but we will not.
New manna! God gives us a fresh word every day! If it turns out we have not been listening, then the Voice will go quiet. So, for me, I try very hard these days not to run ahead of where God wants me. Sometimes, he just wants us to go off into the wilderness and pray! And yes, God is in the wilderness, he is everywhere! And he wants to teach us and help us grow into the image of Christ!