1 Corinthians 8:1-13 is a long passage to say something that isn't really that big of an issue for people I'm around and for most of our society. Maybe I'm missing something, but, there aren't foods that are offered to idols, or foods that cause fellow believers to stumble. I have heard this passage used to say it's okay to drink alcohol, as long as you do it where believers who don't agree with the drinking of alcohol are not going to see you and be tempted by it; meaning even though they think it's wrong in their mind, they drink in spite of that. This would be sin for them, not because it is wrong to drink, but because they think it's wrong and still do it. It's like a sin against their own conscience and a decision to choose sin over what is right.
But I just read this passage twice, and I didn't really have much to apply to myself. I drink the occasional glass of wine or beer. I eat pretty well, for the most part. I think the biggest thing I'm going to take away from this passage is to be aware of who is watching and listening to you, in all situations. There are things people are observing in us that would lead them to make judgments against our faith. We are all sinners, and we all fail to reach heaven on our own. But it is so important to try and live a life that glorifies God and shows those around us that we are set apart for Him. Christ saved us from eternal death. Now we need to live a life of love. "If anyone loves God, he is known by God." Show God love by glorifying Him with all we do. I know, it's hard. At least for me it is.