forgiveness/guidance

We had an interesting discussion at the boyfriends cell group last night (note that subtle mention of new man in life). We were looking at Psalm 25, which appears to have themes of forgiveness, guidance and protection running through it. We were then talking about whether you need God's forgiveness before you get/accept his guidance. And then had a bit of a discussion about God's guidance, and God's path for us. There were three points of view represented.

1. God has only one path for us, if we wander from it we have to get back to it.
2. God has many plans and paths for us. Wandering from one path does not necessarily mean we have to get back to that path.
3. God knows where we are going and our wanderings become part of his plan for us, therefore God only has one path for us, the one that we are on.

I joined the conversation arguing point 2, but now I am having to think about point 3.