There are two ingredients every marriage needs if it is to age like fine wine rather than spoiled milk:

1. Godliness

2. Polarity

By godliness, I mean maturing Christian faithfulness, as seen in the fruit of the Spirit. By polarity, I mean an appreciation of the differences between men and women, and thus well-defined roles for the husband and wife. Godliness means living in accord with saving grace. Polarity means living in accord with our creational design. Without godliness, there is no peace. Without polarity, there is no romance.