Henry Neufeld has a great post up about the dangers of taking prophecy casually, or better put, attributing one's own thoughts to God:
I really don’t suggest we stone false prophets. I simply suggest we should be more careful invoking the name of God. Personally, I’m prepared not to do so, but rather to let others decide if something I say is of that profound a nature, and to live happily in that vast number of times when they are saying, “Not so much.”
Amen. I've written about this subject here, here, and here.