God's Will

How do we know what God's word is for us? This is an age-old and incredibly meaningful question for us to ponder, one I thought about quite a bit this past summer. Why is it that we interpret His Word so differently?
My mom told me this evening about a wonderful sermon by Pastor Tim at Elim Lutheran Church in Petaluma, CA gave last Sunday that addresses this very question. Enjoy.

I'd also love to hear your thoughts on this question. Another way it could be phrased is how do we know when we're following God's will? How do we know when we're doing so individually? collectively?