Aren't they the same thing?
See, it's a perspective - an attitude difference. I saw this idea a few weeks ago in a comment on another blog. I cannot remember which blog. Nor who the commenter was. But the idea stuck with me, and that's the important part.
The commenter made the observation that as we look at our lives and try to follow after Christ, we often ask ourselves "is this sin?"
Of course, we don't want sin in our lives, so this is a natural and a good question. But it might not be the best question. Ever notice that grey area? When you get the I'm-not-really-sure feeling? It might not be inherently wrong but does that mean we should okay it for our lives and the lives of our families?
Instead of asking ourselves, "is this sin?", the commenter suggested asking ourselves, "is this holy?" That puts a different spin on things. I find that when I ask that question, instead of asking the other, there's a whole lot less grey.
No, something may not be morally wrong, and not therefore sin, but that doesn't mean that it's glorifying to God. And that is what our goal should be.
We shouldn't be looking at the world, wondering how close we can stay and still be safe. We should be looking Jesus and trying to see how close to him we can get instead.
Pursue holiness ... you'll be shunning sin as a natural result.