God makes everything according to a plan, with organizing principles underlying each creation. He created marriage this way. If we know the organizing principles and follow them, it stands to reason that being married happily depends on the application of these principles in the relationship. This series aims to lay them out, all in one package for easy review, and to explain each one with examples and scriptures. We hope this can be helpful for premarital and newlyweds, as well as those who have been married for years.