The reason we have so much bad doctrine in the church today, is because everyone thinks all they need is the Holy Spirit and whatever idea pops into their head and they are a prophet or have a new doctrine. I'm not even talking traditional divisions, but some of the weird and crazy things that are being preached on the TV and internet today.
Proper hermeneutics means reading in context. Do you know what that means? It means not pulling a single verse out of the context of that passage, chapter, book, testament and the Bible. You have to read each part of the Bible, thinking about what the rest of Scripture says.
We need to look at what the Biblical author was saying to the people he was writing to. The culture, the history and the geography are part of this. Understanding what has gone before and after the passage.
Then we need to understand the language the passage was written in. That means using tools, and searching deep. Hermeneutics comes from the Greek word "hermeneuein" which means "to explain, interpret or to translate."
When we have a a background in culture and language, we still need to look closely at the grammar and genre. Poetry means something completely different than a narrative or an epistle.
After we have interpreted, the hope is that we can apply it to our lives. Even Jesus knew these basic principles. When Satan quoted the Bible to him to tempt him, he realized that not everything written in the Bible was specifically speaking to him (and he was the Son of God!) and rebuked Satan with the correct Scripture.
Let us all hope we can learn to read and interpret the Bible correctly, and thus not have the divisions in the church that keep arising because of lack of understanding of hermeneutics!