1 Corinthians 10 : 28 But if any man say unto you, This is offered in sacrifice unto idols, eat not for his sake that shewed it, and for conscience sake: for the earth is the Lord’s, and the fulness thereof: 29 Conscience, I say, not thine own, but of the other: for why is my liberty judged of another man’s conscience?

Here Paul is saying that if we are in the presence of unbelievers and something is offered to us that was offered to idols and their is a new believer in the mist the n we should not partake of what was offered. He is saying it is better to offend the nonbeliever than the weaker Christian because love to other believers is the strongest witness we can have. He goes onto say that if our liberty is judged by the one we offended, meaning he is judging us because we might offend a weaker brother with our freedom, will cause the offended person to condemn us. This tells us we should not worry about how the unbeliever views our actions if we are doing the will of God and know that what we are doing is with love for our weaker brothers.