This particular chapter is often held up for much debate and discussion pertaining to subjects like infidelity and divorce. The way I see it, we are called to follow God's commands. Marriage is an institution established by Him. If God is in the marriage on the side of both individuals, things can be worked out. If He is there in even one of the individuals, things can perhaps be worked out. But, as Paul points out in this chapter, our time here on earth to do God's work is short. Being caught in a bad or immoral personal situation only hinders us from doing that work. Our responsibility is to order our lives in a way which best allows us to do God's work.